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Reference List: Basic Rules

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This resourse, revised according to the 7 th  edition APA Publication Manual, offers basic guidelines for formatting the reference list at the end of a standard APA research paper. Most sources follow fairly straightforward rules. However, because sources obtained from academic journals  carry special weight in research writing, these sources are subject to special rules . Thus, this page presents basic guidelines for citing academic journals separate from its "ordinary" basic guidelines. This distinction is made clear below.

Note:  Because the information on this page pertains to virtually all citations, we've highlighted one important difference between APA 6 and APA 7 with an underlined note written in red.  For more information, please consult the   Publication Manual of the American Psychological Association , (7 th  ed.).

Formatting a Reference List

Your reference list should appear at the end of your paper. It provides the information necessary for a reader to locate and retrieve any source you cite in the body of the paper. Each source you cite in the paper must appear in your reference list; likewise, each entry in the reference list must be cited in your text.

Your references should begin on a new page separate from the text of the essay; label this page "References" in bold, centered at the top of the page (do NOT underline or use quotation marks for the title). All text should be double-spaced just like the rest of your essay.

Basic Rules for Most Sources

  • All lines after the first line of each entry in your reference list should be indented one-half inch from the left margin. This is called hanging indentation.
  • All authors' names should be inverted (i.e., last names should be provided first).
  • For example, the reference entry for a source written by Jane Marie Smith would begin with "Smith, J. M."
  • If a middle name isn't available, just initialize the author's first name: "Smith, J."
  • Give the last name and first/middle initials for all authors of a particular work up to and including 20 authors ( this is a new rule, as APA 6 only required the first six authors ). Separate each author’s initials from the next author in the list with a comma. Use an ampersand (&) before the last author’s name. If there are 21 or more authors, use an ellipsis (but no ampersand) after the 19th author, and then add the final author’s name.
  • Reference list entries should be alphabetized by the last name of the first author of each work.
  • For multiple articles by the same author, or authors listed in the same order, list the entries in chronological order, from earliest to most recent.
  • Note again that the titles of academic journals are subject to special rules. See section below.
  • Italicize titles of longer works (e.g., books, edited collections, names of newspapers, and so on).
  • Do not italicize, underline, or put quotes around the titles of shorter works such as chapters in books or essays in edited collections.

Basic Rules for Articles in Academic Journals

  • Present journal titles in full.
  • Italicize journal titles.
  • For example, you should use  PhiloSOPHIA  instead of  Philosophia,  or  Past & Present   instead of  Past and Present.
  • This distinction is based on the type of source being cited. Academic journal titles have all major words capitalized, while other sources' titles do not.
  • Capitalize   the first word of the titles and subtitles of   journal articles , as well as the   first word after a colon or a dash in the title, and   any proper nouns .
  • Do not italicize or underline the article title.
  • Deep blue: The mysteries of the Marianas Trench.
  • Oceanographic Study: A Peer-Reviewed Publication

Please note:  While the APA manual provides examples of how to cite common types of sources, it does not cover all conceivable sources. If you must cite a source that APA does not address, the APA suggests finding an example that is similar to your source and using that format. For more information, see page 282 of the   Publication Manual of the American Psychological Association , 7 th  ed.

APA Citation Style, 7th edition: Three to Five Authors or Editors

  • General Style Guidelines
  • One Author or Editor
  • Two Authors or Editors
  • Three to Five Authors or Editors
  • Article or Chapter in an Edited Book
  • Article in a Reference Book
  • Edition other than the First
  • Translation
  • Government Publication
  • Journal Article with 1 Author
  • Journal Article with 2 Authors
  • Journal Article with 3–20 Authors
  • Journal Article 21 or more Authors
  • Magazine Article
  • Newspaper Article
  • Basic Web Page
  • Web page from a University site
  • Web Page with No Author
  • Entry in a Reference Work
  • Government Document
  • Film and Television
  • Youtube Video
  • Audio Podcast
  • Electronic Image
  • Twitter/Instagram
  • Lecture/PPT
  • Conferences
  • Secondary Sources
  • Citation Support
  • Avoiding Plagiarism
  • Formatting Your Paper

About Citing Books

For each type of source in this guide, both the general form and an example will be provided.

The following format will be used:

In-Text Citation (Paraphrase) - entry that appears in the body of your paper when you express the ideas of a researcher or author using your own words.  For more tips on paraphrasing check out The OWL at Purdue .

In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote.

References - entry that appears at the end of your paper.

Information on citing and several of the examples were drawn from the Publication Manual of the American Psychological Association (7th ed.).

Book with Three to Five Authors or Editors

The general format below refers to a book with three or more authors.

If you are dealing with a book that has three to five editors instead of authors, you would simply insert the names of the editors into the place where the authors' names are now, followed by "(Eds.)" without the quotation marks (as per the example). The rest of the format would remain the same.

General Format

In-Text Citation (Paraphrase):

(Author Surname et al., Year)

NOTE: The in-text citation for works with three or more authors is shortened to the first author's name followed by et al. and the year.

In-Text Citation (Direct Quote):

(Author Surname et al., Year, page number)

References:

Author Surname, First Initial. Second Initial., Author Surname, First Initial. Second Initial., & Author Surname, First Initial. Second Initial. (Year). Book title: Subtitle . Publisher.

(Johnson et al., 1999)

(Johnson  et al., 1999, p. 72)

Johnson, N. G., Roberts, M. C., & Worell, J. (Eds.). (1999). Beyond appearance: A new look at adolescent girls . American Psychological Association.

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Purdue Owl: APA Formatting & Style Guide

Developed by Purdue's Online Writing Lab. Contains resources on in-text citation and the references page, as well as APA sample papers, slide presentations, and the APA classroom poster.

Author/Editor (By:)

Contributor, corporate author, related organizations, citation type.

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Generate accurate APA citations for free

  • Knowledge Base
  • APA Style 7th edition
  • Beginner’s guide to APA in-text citation

APA In-Text Citations (7th Ed.) | Multiple Authors & Missing Info

Published on November 4, 2020 by Raimo Streefkerk . Revised on September 30, 2022.

In-text citations briefly identify the source of information in the body text. They correspond to a full reference entry at the end of your paper.

APA in-text citations consist of the author’s last name and publication year. When citing a specific part of a source, also include a page number or range, for example (Parker, 2020, p. 67) or (Johnson, 2017, pp. 39–41) .

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Table of contents

Apa in-text citations explained in 4 minutes, parenthetical vs. narrative citations, apa in-text citations with multiple authors, no author, date or page number, multiple sources in one parenthesis, avoiding ambiguity in apa in-text citations, citing indirect sources (“as cited in”), citing personal communication, general mentions of websites and software, example paragraph with in-text citations, frequently asked questions.

The in-text citation can be placed in parentheses or naturally integrated into a sentence.

  • Parenthetical : There is a correlation between social media usage and anxiety symptoms in teenagers (Parker, 2019) .
  • Narrative: Parker (2019) found a correlation between social media usage and anxiety symptoms in teenagers.

The publication year appears directly after the author’s name when using the narrative format. The parenthetical citation can be placed within or at the end of a sentence, just before the period. Check out a full example paragraph with in-text citations .

If a work has two authors, separate their names with an ampersand (&) in a parenthetical citation or “and” in a narrative citation. If there are three or more authors, only include the first author’s last name followed by “et al.”, meaning “and others”.

Group authors known by their abbreviations (e.g., CDC) are written in full the first time and are abbreviated in subsequent citations.

If the author of a source is unknown, try to determine if there is an organization or government responsible for creating the content. If so, include its name in the in-text citation (and reference entry).

Alternatively, use the source title in place of the author. Italicize the title if it’s italicized in the reference entry (except for court cases , which are italicized in the in-text citation but not the reference entry). Otherwise, enclose it in double quotation marks.

Apply title case capitalization, and shorten long titles. The first word of the title should always be included so readers can easily locate the corresponding reference entry.

  • (“U.S. Flood Risk,” 2015)
  • ( Thinking, Fast and Slow , 2017)

No publication date

If the publication date is unknown, write “n.d.” (no date) in the in-text citation.

No page number (alternative locators)

Page numbers are only required with direct quotes in APA . If you are quoting from a work that does not have page numbers (e.g., webpages or YouTube videos ), you can use an alternative locator, such as:

  • (Liu, 2020, 03:26 )
  • (Johnson, 2019, Chapter 3 )
  • (McCombes, 2016, para. 4 )
  • (Davis, 2016, Slide 15 )
  • (Flores, 2020, Table 5 )
  • (Streefkerk, 2020, “No page number” section )

Note that Bible citations always use chapter and verse numbers, even when page numbers are available:

If a statement is supported by multiple sources, the in-text citations can be combined in one parenthesis. Order the sources alphabetically, and separate them with a semicolon.

When citing multiple works from the same author, list the years of publication separated by a comma.

When in-text citations are ambiguous because they correspond to multiple reference entries, apply the solutions outlined in the table below.

If you want to refer to a source that you have found in another source, you should always try to access the original or primary source .

However, if you cannot find the original source , you should cite it through the secondary source that led you to it, using the phrase “as cited in”.

If the publication date of the primary source is unknown, include only the year of publication of the secondary source.

Only include a reference entry for the secondary source, not the primary source.

Personal communications , such as phone calls, emails, and interviews, are not included in the reference list because readers can’t access them. The in-text citation is also formatted slightly differently.

Include the initials and last name of the person you communicated with, the words “personal communication,” and the exact date in parentheses.

General mentions of a website or software don’t have to be cited with an in-text citation or entry in the reference list. Instead, incorporate relevant information into the running text.

  • The website of Scribbr (www.scribbr.com) contains various useful resources.
  • Statistical software SPSS (version 25) was used to analyze the data.

When citing a webpage or online article , the APA in-text citation consists of the author’s last name and year of publication. For example: (Worland & Williams, 2015). Note that the author can also be an organization. For example: (American Psychological Association, 2019).

If you’re quoting you should also include a locator. Since web pages don’t have page numbers, you can use one of the following options:

  • Paragraph number: (Smith, 2018, para. 15).
  • Heading or section name: ( CDC, 2020, Flu Season section)
  • Abbreviated heading:  ( CDC, 2020, “Key Facts” section)

Instead of the author’s name, include the first few words of the work’s title in the in-text citation. Enclose the title in double quotation marks when citing an article, web page or book chapter. Italicize the title of periodicals, books, and reports.

If the publication date is unknown , use “n.d.” (no date) instead. For example: (Johnson, n.d.).

The abbreviation “ et al. ” (meaning “and others”) is used to shorten APA in-text citations with three or more authors . Here’s how it works:

Only include the first author’s last name, followed by “et al.”, a comma and the year of publication, for example (Taylor et al., 2018).

Always include page numbers in the APA in-text citation when quoting a source . Don’t include page numbers when referring to a work as a whole – for example, an entire book or journal article.

If your source does not have page numbers, you can use an alternative locator such as a timestamp, chapter heading or paragraph number.

If you cite several sources by the same author or group of authors, you’ll distinguish between them in your APA in-text citations using the year of publication.

If you cite multiple sources by the same author(s) at the same point , you can just write the author name(s) once and separate the different years with commas, e.g., (Smith, 2020, 2021).

To distinguish between sources with the same author(s) and  the same publication year, add a different lowercase letter after the year for each source, e.g., (Smith, 2020, 2021a, 2021b). Add the same letters to the corresponding reference entries .

In an APA in-text citation , you use the phrase “ as cited in ” if you want to cite a source indirectly (i.e., if you cannot find the original source).

Parenthetical citation: (Brown, 1829, as cited in Mahone, 2018) Narrative citation: Brown (1829, as cited in Mahone, 2018) states that…

On the reference page , you only include the secondary source (Mahone, 2018).

An APA in-text citation is placed before the final punctuation mark in a sentence.

  • The company invested over 40,000 hours in optimizing its algorithm (Davis, 2011) .
  • A recent poll suggests that EU membership “would be backed by 55 percent of Danish voters” in a referendum (Levring, 2018) .

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Streefkerk, R. (2022, September 30). APA In-Text Citations (7th Ed.) | Multiple Authors & Missing Info. Scribbr. Retrieved February 22, 2024, from https://www.scribbr.com/apa-style/in-text-citation/

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APA Citation Style 6th Edition: C. Three to Five Authors or Editors

  • Quotes & Paraphrasing
  • References Guidelines
  • Definitions
  • A. One Author or Editor
  • B. Two Authors or Editors
  • C. Three to Five Authors or Editors
  • D. Article or Chapter in an Edited Book
  • E. Article in a Reference Book
  • F. No Author
  • H. Edition other than the First
  • I. Translation
  • J. Government Publication
  • A. Journal Article with One Author
  • B. Journal Article with 2 Authors
  • C. Journal Article with 3-5 Authors
  • D. Journal Article with 6 or more authors
  • E. Magazine Article
  • F. Newspaper Article
  • A. Basic Web Page
  • B. Website from a University Site
  • C. No Author
  • D. Blog Post
  • E. Entry in a Reference Work
  • F. Government Document
  • A. Motion Picture
  • B. YouTube Video
  • A. Electronic Image
  • A. Interview
  • D. Classical Works
  • E. Secondary Sources

About Citing

For each type of source in this guide, both  the general form and an example  will be provided.

The following format will be used:

In-Text Citation (Paraphrase) - entry that appears in the body of your paper when you express the ideas of a researcher or author using your own words.  For more tips on paraphrasing check out  The OWL at Purdue .

In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote.

References -  entry that appears at the end of your paper.

Information on citing and several of the examples were drawn from the APA Manual  (6th ed.).

Book with Three to Five Authors or Editors (pp. 177, 202)

Printable handouts.

  • Inserting a Running Head
  • Annotated Bibliography
  • APA 7th Edition Checklist
  • APA 6th Edition Guide
  • APA References Page Sample
  • Creating a Hanging Indent
  • << Previous: B. Two Authors or Editors
  • Next: D. Article or Chapter in an Edited Book >>
  • Last Updated: Feb 15, 2024 4:59 PM
  • URL: https://libguides.oakwood.edu/APA

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APA 7th Edition

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Purdue's OWL (Online Writing Lab) provides instruction on how to use APA 7th. Below are a few topics covered by the OWL.

  • APA Style Introduction APA 7th
  • APA Overview and Workshop APA 7th
  • General Formatting APA 7th
  • In-Text Citation: Authors APA 7th
  • Foot Notes and Appendices APA 7th
  • Changes in the 7th Edition APA 7th
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  • Next: Citation Managers >>
  • Last Edited: Feb 9, 2024 10:42 AM
  • URL: https://guides.lib.purdue.edu/Education_GraduateStudents

Home / Guides / Citation Guides / APA Format / How to cite in APA when there are multiple authors

How to cite in APA when there are multiple authors

This article covers how to cite a reference in APA style (7th ed.) when there are multiple authors. Broadly speaking, in an APA style “the author” refers to the person(s) or group(s) who should be given credit for the work being referenced.

Here’s a run-through of everything this page includes:

In-text citations when there are multiple authors

Reference list entries when there are multiple authors, troubleshooting.

APA 7th ed. uses the author-date citation system for citing references in text. Unless you are citing a source with no author in APA , the structure in parenthetical citations includes placing the author’s last name/surname, followed by a comma, and the publication year in parentheses. In narrative citations, this information is incorporated into the sentence.

Parenthetical citation for one author:

(Author Last Name, Year Published)

(Curtis, 2020)

Narrative citation for one author:

Author Last Name (Year Published)

Curtis (2020)

Two authors

For a work with two authors, include both authors’ last names in every in-text citation, whether narrative or parenthetical. In parenthetical citations, use an ampersand (&) between the authors’ last names.

Parenthetical citation for two authors:

(1st Author & 2nd Author, Year Published)

(Curtis & Williams, 2020)

Narrative citation for two authors:

1st Author & 2nd Author (Year Published)

Curtis & Williams (2020)

Three or more authors

When citing a journal paper in APA with three or more authors, only enter the last name of the first author listed and add “et al.” after it. “Et al.” is Latin for the phrase “and others,” which is why it is used as a substitute for two or more authors’ last names.

Parenthetical citation for three or more authors:

(1st Author et al., Year Published)

(Harris et al., 2020)

Narrative citation for three or more authors:

1st Author et al. (Year Published)

Harris et al. (2020)

Here is a page with more information on when to use “et al.” in APA style .

Group authors

The same guidelines for in-text citations apply when the authors of a source are a distinct group or organization such as a government agency, association, nonprofit organization, business, hospital, task force, or study group. To confirm whether a reference was written by individual author(s) or a group, check the cover or title page.

Hint: for an online resource, the author could be the name of the organization hosting the webpage or website, rather than the name of just one content contributor.

Before using an abbreviated group name as the author of your citation, spell out the abbreviation and define the group one time first in the text. Afterward, use the abbreviation of the group name throughout the rest of the paper.

Group author in-text citation examples:

First parenthetical citation with group abbreviation included: (Association of Jesuit Colleges and Universities [AJCU], 2020)

Subsequent parenthetical citations: (AJCU, 2020)

First narrative citation with group abbreviation included: The Association of Jesuit Colleges and Universities [AJCU] (2020)

Subsequent narrative citations: The AJCU (2020)

Avoiding ambiguity in in-text citations

Sometimes, in-text citations that have three or more authors, some of whom have the same last name, and the same publication year can look like they are the same reference when using the et al. abbreviation. For example, Curtis et al. (2020) could refer to

Curtis, Acres, Thomas, Henderson, and Tyler (2020)

Curtis, Acres, Thomas, Henderson, Maxey, Key, Smith, and Esparza (2020)

To avoid this ambiguity and confusion for the reader, write out as many names as possible for the in-text citation until the references are distinguished, and then add “et. al” to abbreviate the other authors’ names.

Curtis, Acres, Thomas, Henderson, et al. (2020)

Curtis, Acres, Thomas, Henderson, Maxey, et al. (2020)

When only the final author is different, list all of the names in every citation to avoid any confusion.

Curtis, Acres, Thomas, Henderson, and Esparza (2020)

APA has slightly different reference structures for different source types (e.g., book, website, journal article, etc.), but each structure generally includes the following:

Author last name, Author initials. (Date Published). Title. URL or DOI if available .

Need more help with citing a particular source? Find further guidance in this APA citations guide.

One or two authors

For references with one or two authors, cite using the four-part structure.

Two individual authors example:

Smith, J., & Jones, S. (1994). Making a movie star. Behind the Scenes Stories: A Journal of Celebrity Life, 44 (2), 192–200. https://doi.org/l4nds0r

One group author example:

The American Marine Society. (2003). Whale mating patterns in the new millennium. The American Marine Society Magazine , 17-20 . https://fams.gov/article/2003/whale-mating-patterns-in-the-new-millennium

2 – 20 authors

In APA 7th ed., up to 20 authors should be included in a reference list entry. Write out the last name and first initial(s) for each contributor.

2–20 authors example:

Wright, A., Komal, G., Siddharth, D., Boyd, G., Cayson, N., Beverley, K., Travers, K., Begum, A., Redmond, M., Mills, M., Cherry, D., Finley, B., Fox, M., Ferry, F., Almond, B., Howell, E., Gould, T., Berger, B., Bostock, T., Fountain, A. (2020). Styling royalty. London Bridge Press.

21+ authors

For references with more than 20 authors, after listing the 19th author replace any additional author names with an ellipsis ( … ) followed by the final listed author’s last name and first initial(s).

21+ authors example:

Wright, A., Komal, G., Siddharth, D., Boyd, G., Cayson, N., Beverley, K., Travers, K., Begum, A., Redmond, M., Mills, M., Cherry, D., Finley, B., Fox, M., Ferry, F., Almond, B., Howell, E., Gould, T., Berger, B., Bostock, T., . . . Booker, T. (2020). Eating well: Tips from 23 lifestyle authors. Food Magazine. https://foodmag.com/article/2020/tips-from-22-lifestyle-authors

Solution #1: How to order the names of multiple authors in an APA reference

Authors should be cited in the exact order that they are listed by the source, even if they have not been listed alphabetically.

Solution #2: How to cite an article with more than 20 authors in APA style

If an article has more than 20 authors, all authors do not need to be listed in the reference. Instead, name the first 19, then use an ellipsis (…), then add the name of the final author listed. The ellipsis acts as a substitute for all the names between the first 19 and the final authors. No ampersand (&) is needed before the final name.

For example:

Richards, B.A., Lillicrap, T. P., Beaudoin, P., Bengio, Y., Bogacz, R., Christensen, A., Clopath, C.

Costa, R. P., de Berker, A., Ganguli, S., Gillon, C. J., Hafner, D., Kepecs, A., Kriegeskorte,

N., Latham, P., Lindsay, G. W., Miller, K. D., Naud, R., Pack, C. C., … Kording, K. P. (2019). A deep learning framework for neuroscience. Nature Neuroscience ,  22 (11), 1761–1770. https://doi.org/10.1038/s41593-019-0520-2

When making an in-text citation, only write the first author’s last name followed by “et. al.” This applies to both parenthetical and narrative citations.

(Richard et al., 2019)

Richard et al. (2019)

Solution #3: How to cite an article written by an organization in APA style

  • Organization as author

When an article is written by an organization, use the typical four-part APA structure (author, date, title, publisher) and cite the organization as the author.

American Nurses Association. (2019). 2018 Annual Report, American Nurse Today, 14 (6), 29-36.

https://www.nursingworld.org/~49d621/globalassets/docs/ana/ana-annual-report-for-

  • Organization as author and publisher

If the organization that authored an article is also its publisher , omit the publisher’s name in the citation.

  • In-text citation when an organization is an author

Use the organization’s name as the author. For example:

American Nurses Association [ANA] (2019)

If an organization’s name is long, abbreviate it by doing the following:

  • First, write the organization’s name in full the first time, followed by the abbreviation in parenthesis.
  • After this, you may use the abbreviation without including the complete name.

1 st in-text narrative citation: American Nurses Association [ANA] (2019)

1 st in-text parenthetical citation: (American Nurses Association [ANA] (2019)

After this distinction is made, abbreviations in-text can be used as demonstrated below:

Narrative citations: The ANA (2019)

Parenthetical citations: (ANA, 2019)

Published October 28, 2020.

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To cite a source with multiple authors and an edition number in APA style, you need to know the names of the authors, title of the book, edition number, and publisher. The in-text citation of a book with multiple authors and an edition number is similar to citing a journal or a book reference with multiple authors. An example of a book reference with three authors and an edition number, along with a template, is given below:

In-text citation template and example:

Author Surname et al. (Publication Year)

LeBuffe et al. (2012)

Parenthetical

(Author Surname et al., Publication Year)

(LeBuffe et al., 2012)

Reference list entry template and example:

Author Surname, F. M., Author Surname, F. M., & Author Surname, F. M. (Publication Year). Book title (edition number). Publisher

LeBuffe, P. A., Naglieri, J. A., & Manderth, A. (2012). Devereux early childhood assessment for preschoolers (2nd ed.). Kaplan Early Learning Company.

Use numerals to indicate an edition number. The word “edition” is abbreviated as “ed.” Italicize the book title and follow sentence case for capitalization.

Citing a source that has multiple authors with the same last name and same initials is the same as citing a source with different authors. There is no need to add the initials of the authors in in-text citations as all surnames (although the same) appear in a single source. Examples of a book reference with three authors with the same last name and initials and their templates are given below:

Dunn et al. (2007)

(Dunn et al., 2007)

Author Surname, F. & Author Surname, F. (Publication Year). Book title. Publisher.

Dunn, L. M., Dunn, L. M., & Dunn, L. M. (2007). Peabody picture vocabulary test-IV. American Guidance Service.

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4.3: APA Format

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  • Lindsey Jo Hand, Erin Ryan, and Karen Sichler
  • Kennesaw State University via GALILEO Open Learning Materials

Before getting started on the research process, let’s learn a little more about formatting and structuring papers. Scholarly research within communication studies typically uses American Psychological Association format, or APA. APA style provides scholars with a uniform way to present and understand research. While it takes some time to learn, this formatting style will help you keep your papers organized and most importantly, will aid you in properly citing your sources in order to avoid plagiarism. This chapter will walk you through a series of exercises intended to familiarize you with APA style. First, we will briefly discuss the general structure of a paper written in APA format. Then we' will practice in-text citations and reference list citations. As you complete these exercises, make sure you have your APA manual handy. You may also find the Purdue Online Writing Lab (OWL) at https://owl.english.purdue.edu/owl/resource/560/1/ helpful, as this site stays current on APA formatting as well.

Paper Structure

The structure for a literature review is somewhat standard and involves several components, which are listed in Figure 2. While exercises following this chapter will walk you through writing each section, we're going to give you a quick explanation of what each paper section entails.

"Research is formalized curiosity. It is poking and prying with a purpose. It is a seeking that he who wishes may know the cosmic secrets of the world and they that dwell therein." -Zora Neale Hurston

Screenshot 2021-02-15 at 22.04.59.png

Figure \(\PageIndex{1}\): Literature Review Paper Structure

The title page is the first page of your paper. As illustrated in your manual and the APA sample paper provided on Purdue OWL at https://owl.english.purdue.edu/media...013008_560.pdf , the title page should include a header, page number, the paper title, your name, and your school name. You may also include an author note, but some instructors may not require this. For a demonstration on how to format your header, please click on the button below:

Video \(\PageIndex{1}\)

Introduction

The introduction informs the reader on what your topic of inquiry is. You give the reader background information on your topic such as definitions or statistics illustrating the significance of your topic. Here, you describe what the purpose of your paper is. For an 8 to 10 page paper, this section is typically 1 to 3 paragraphs.

The abstract is placed on the page after the title page and provides a brief summary of the whole paper along with keywords used in your library source searches. Since it's a summary of your whole paper, it should be the last part of the paper you write. This section is typically 5 to 7 sentences.

Literature Review

Your literature review section should be an overview of research that has already been conducted on the topic you are researching. This is the main section of the paper and is intended to give the reader an idea of what the state of knowledge is on the topic. It's important to remain objective and rely solely on your sources for information. Make sure you leave personal observation and personal knowledge out of your literature review. For an 8 to 10 page paper, this section is typically 4 to 6 pages.

Analysis and Discussion

This section is where you discuss the literature you just reviewed and summarized. What does it all mean? Identify patterns and ideas that your sources seem to agree on. Were there any discrepancies or contradictions? What did your sources miss, and what questions still need to be answered regarding your topic? After identifying this information, you will need to suggest future research possibilities and what scholars should investigate next. For an 8 to 10 page paper, this section is typically 1 to 3 pages.

Your conclusion will wrap everything up by restating the purpose of your paper and reiterating your main points. For an 8 to 10 page paper, this section is typically 1 to 3 paragraphs.

This section is where you cite all of the sources you used in your paper. Make sure you have your APA manual handy as you complete your citations.

Avoiding Plagiarism

We provide citations in academic works in order to let the reader know that our information and claims are supported by evidence and to avoid plagiarism. Whenever you share information or an idea that is not your own, the source of that information must be cited. Please see the list below from the University of Pittsburgh (2008) to get a better understanding of what plagiarism is and what types of plagiarism exist:

  • Copying text "as is" without quotation marks and with no citation or source.
  • Reordering the elements of the source text without citation.
  • Copying pieces (sentences, key phrases) of the source text without citation.
  • Paraphrasing without citation. o Reproducing information that is not common knowledge or self-evident without citation.
  • Incorporating an idea heard in conversation without citation.
  • Using your own past material or another student's material as a new idea without citation.
  • Paying for another to contribute to your work without citation.
  • Using software or online translators to translate material without citation.
  • Paying someone else to do your work, purchasing material, or translating from someone else's material (Calvano, 2011, p.1).

In-text Citations

The in-text citations you provide in your written work help the reader understand where your information came from and ensure that the informatoin you are sharing is credible. Below are some examples of common in-text citation styles you will use in your paper. For these examples, we'll use the following citation:

Stiles, M., & Hand, L. (2017). APA format: You can do it. Kennesaw State Journal, 3(1), 1-10. doi: 10.3920958039

Paraphrasing

--There are two ways to do this.

According to Stiles and Hand (2017), APA format can be a little complicated and takes time and practice to learn.

APA format can be a little complicated and takes time to time and practice to learn (Stiles & Hand, 2017).

Direct Quotes

According to Stiles and Hand (2017), "APA formatting is nuanced and consists of many rules, and fully learning this format takes time" (p. 2).

"APA formatting is nuanced and consists of many rules, and fully learning this format take time" (Stiles & Hand, 2017, p. 2).

More Than 3 Authors

--List all names in the first citation then use "et al." for all other following citations.

What the first citation would look like:

According to Stiles, Hand, and Smith (2017), APA formatting highlights publication dates because recent research is important in social science disciplines.

APA formatting highlights publication dates because recent research is important in the social sciences (Stiles, Hand, & Smith, 2017).

Citations following the first citation:

Stiles et al. (2017) claim that APA takes time to learn.

APA takes time to learn (Stiles et al., 2017).

According to Stiles et al. (2017), "APA formatting takes consistent practice to fully learn" (p. 3).

"APA formatting takes consistent practice to fully learn" (Stiles et al., 2017, p. 3).

Reference List Citations

These types of citations are listed in the references section of your paper. As you complete your work, you may find the checklist at https://www2.indwes.edu/APA/APAStyleChecklist.pdf helpful. Please see the list below from Purdue OWL (2018) for basic rules on constructing a references list.

  • All lines after the first line of each entry in your reference list should be indented one-half inch from the left margin. This is called hanging indentation.
  • Authors' names are inverted (last name first); give the last name and initials for all authors of a particular work for up to and including seven authors. If the work has more than seven authors, list the first six authors and then use ellipses after the sixth author's name. After the ellipses, list the last author's name of the work.
  • Reference list entries should be alphabetized by the last name of the first author of each work.
  • For multiple articles by the same author, or authors listed in the same order, list the entries in chronological order, from earliest to most recent.
  • Present the journal title in full. o Maintain the punctuation and capitalization that is used by the journal in its title. For example: ReCALL not RECALL or Knowledge Management Research & Practice not Knowledge Management Research and Practice.
  • Capitalize all major words in journal titles.
  • When referring to books, chapters, articles, or Web pages, capitalize only the first letter of the first word of a title and subtitle, the first word after a colon or a dash in the title, and proper nouns. Do not capitalize the first letter of the second word in a hyphenated compound word.
  • Italicize titles of longer works such as books and journals.
  • Do not italicize, underline, or put quotes around the titles of shorter works such as journal articles or essays in edited collections.

Scholarly Journal Article Citation Example

Scholarly book citation.

Sichler, K., & Ryan, E. (2018). The joys of APA format. New York, New York: Cengage

Calvano, B. (2011). Plagiarism in higher education. Retrieved from http:// www.examiner.com/adult-education-in- pittsburgh/plagiarism-higher- education

Purdue Online Writing Center (2018). Reference list: Basic Rules. Retrieved from https://owl.english.purdue.edu/owl/resource/560/05/

University of Pittsburgh. (2008). Undergraduate plagiarism policy. Retrieved from http://www.frenchanditalian.pitt.edu/undergrad/about/ plagiarism.php

APA Format Source Exercise \(\PageIndex{1}\)

Let's practice. Conduct a quick search on your library's website. Use the key words "media", "effects", and "cultivation theory". Find one scholarly article and one scholarly book. List their information in the form below to the best of your ability. Use this form to keep track of your sources and to ensure your citations include all required information.

Scholarly Journal Article

Author name(s):

Publication date:

Title: Publication/journal name:

Volume number:

Edition number:

Page numbers:

Doi number or url:

Full Citation:

Scholarly Book

owl purdue apa 3 authors

Common Citations and References in APA Style (7th Ed.)

APA Common Citations & References (7th Ed.) PDF

The American Psychological Association (APA) established writing and documentation guidelines in 1929, so readers could easily understand the major points and findings in scientific research. Today, APA Style is used across the disciplines as a standard style for academic and professional writing. APA Style helps writers think critically, communicate clearly and precisely, and document sources ethically. This tutorial on APA citations and references follows the guidelines of the Publication Manual of the American Psychological Association seventh edition .

Citations and references are forms of documentation. We must document the ideas, theories, definitions, data, images, and other information in our writing that originated with other authors, researchers, and artists. For example, our work must include documentation when we quote, paraphrase, or summarize another’s ideas or when using data from others’ research. Documentation means including select information about a source “in text” and including additional bibliographic information about that source in a “reference list entry.” In APA Style, for every retrievable source cited in text, there is a corresponding reference list entry with that retrieval information.

Documentation is how we establish our credibility as researchers and writers. It is how we write ethically and with integrity. Writing often involves using the ideas, theories, definitions, data, and images of others in order to support or refute our theses. Documentation is how we give credit to others for their contributions to our work. Documenting sources also differentiates our original ideas from the source contributions and enables readers to locate the original source to learn more about it. Documenting sources with in-text citations and reference list entries also prevents plagiarism, which “is the act of presenting the words, ideas, or images of another as your own” (APA, 2020, p. 254).

APA Style in-text citations use the author-date system. In this APA Style in-text citations use the author-date system. In this system, the citation identifies a source used in the “text” (the body of a piece of writing) by providing the source’s author and the date of publication. Additional rules apply for in-text citations for varying source types and paraphrasing, but there are two primary types of in-text citations: narrative and parenthetical .

In narrative citations, the author’s name is part of a sentence and usually appears in a signal phrase that introduces the quoted, paraphrased, or summarized information. The second part of the citation, the publication year, then appears in parentheses immediately following the author’s name. Here is an example:

  • Smith (2010) recognized that more online learning opportunities are needed to reach marginalized high school students and decrease the dropout rate.

When citing a quotation using a narrative citation, the author’s name is used in the sentence, the date is given in parentheses after the author’s name, and the specific part of the source where the quote appears such the page, paragraph, time stamp on a video, or bar on a graph goes in parentheses after the quote and before any punctuation. Here are two examples:

  • Smith (2010) stressed, “The importance of dedicated study time for online courses is crucial for student success” (p. 3).
  • In his TEDX Talk video, Mulvey (2013) said, “Time is too long. Space is too large” (6:18).

In parenthetical citations, the author-date information goes after the paraphrase in parentheses as in the following example:

  • Online learning opportunities are needed to reach marginalized high school students and decrease the dropout rate (Smith, 2010) .

For a quotation, the parenthetical citation contains the author and date, and it also contains the specific part of the source such as the page or paragraph number or the timestamp of a video as in this example:

  • Many researchers have agreed: “Online education is a viable way to help working adults earn a college degree, but it is not for everyone” (Smith, 2010, p. 4) .

An author may be an individual, multiple people, or a group such as an organization, company, or governmental agency. In an in-text citation, the format is to use the author or authors’ last names or the group author name. See No Author if a source does not specify an author.

  • Individual Author: (Hannah, 2010)
  • Multiple Authors: (Hannah & Lay, 2015); (Hannah, Lay, & Sleder, 2010)
  • Group Author: (Hannah and Lay Company, 2020)

The URL, which stands for Uniform Resource Locator and is the web address for a source is not part of an in-text citation except in the rare cases that the URL is also the author’s name such as Drugs.com: (Drugs.com, n.d.).

The in-text citation for a quotation includes the part of the source where the information is found. Page numbers are common in printed books and articles; however, for electronic sources without page numbers, you will need to provide another way for a reader to locate the original passage being quoted. The following options are acceptable:

  • Paragraph number: (Mackenzie, 2018, para. 1)
  • Heading or section name: (Mackenzie, 2018, Highlands section). In this example, the information being cited can be found on the source website or page under a section named “Highlands.”
  • Both section and paragraph: (Mackenzie, 2018, Highlands section, para. 1)
  • For audiovisual works, provide the time stamp of when the quoted words begin: (Mulvey, 2013, 6:18).

A reference list entry should be provided for each source cited in text. Reference list entries have four elements: author, date, title, and source. The “source” here is the publication where the information was published such as a website, book, or periodical. Each element of the reference answers a question:

  • Author: Who is responsible for this work?
  • Date: When was this work published?
  • Title: What is this work called?
  • Source: Where can I retrieve this work?

Reference entries and in-text citations correspond: The author or title given in the in-text citation is the first element of the reference entry. Example reference entries are provided in the Common Citations and References section of this resource. The following formatting requirements apply to the reference list:

  • Label the reference list References in bold font, centered at the top of the page.
  • Double-space all reference list entries. Also use double spacing within entries. Do not use additional spacing between entries.
  • Reference entries are not numbered or bulleted.
  • Use a hanging indent for all references, so the first line of the entry is against the left margin and subsequent lines of the entry are indented 0.5 in.
  • Alphabetize the entries according to the author’s last name. If the entry does not include an author, begin the entry with the title followed by the year in parentheses, and alphabetize according to the first significant word of the title. If the title begins with the words “A,” “An,” or “The,” alphabetize using the next word in the title. Example: The title The Whales in the Ocean would be alphabetized using the letter “W” because “Whales” is the first significant word.

Resources available online have URLs, which are web links, or DOIs, which are unique strings of numbers that provide persistent and reliable links to resources. Here are some basic guidelines for URLs and DOIs in reference entries:

  • If a source has a DOI, include it in the reference entry. Some print texts also have DOIs. The DOI is often given near the copyright information at the beginning of a text.
  • Present DOIs and URLs as hyperlinks in the reference entry. Hyperlinks begin http:// or https:// . DOIs will begin https://doi.org/ . It is acceptable to use the shortDOI® Service to shorten long DOIs and an URL shortening service such as https://bitly.com/ to shorten URLs.
  • All hyperlinks should be live and may appear using the automatic formatting of the word processing program (for example in blue font and underlined), or they may appear in standard black font without an underline, but papers read online should have clickable, live links.
  • Do not include additional words before the hyperlink such as “Retrieved from” or “DOI.” Exception : If a characteristics of the source is that it is updated regularly, such a reference book with a group author (dictionary, encyclopedia, thesaurus) or a Facebook page, a retrieval date would provide valuable information to a reader who tries to locate your source and sees different content. In the reference, include the date you accessed the source in the following format for the URL element of the reference: Retrieved Month day, Year, from URL.

Common Citations and References (APA 7th Ed.)

Note: Most of the examples in this resource are fictional. Any similarities to real sources or names are coincidental.

In-Text Citation for Articles

  • Parenthetical: (Jensen, 2010, p. 5)
  • Narrative: Jensen (2010) stated, “The results of this global warming study are skewed to present a problem that has political pull” (p. 5).
  • Parenthetical: (Jensen, 2010)
  • Narrative: Jensen (2010) believes the results are being misconstrued to support a political agenda.

Reference for a blog article

Author, A. A. (Year, Month day). Title of article. Blog Title . URL

Wayne, J. M. (2010, January 3). Finding balance. Health for Life . http://wayne.blogger.com/longdays

Reference for an editorial article

Author, A. A. (Year). Title of article [Editorial]. Periodical Title , volume (issue), pages. DOI or URL

Michaels, J. C. (2020). The seeds of change [Editorial]. Nutrition Today , 10 (4). 2-3. https://doi.org/10.1199/001043456787654

Reference for a journal article with a nondatabase URL

Author, A. A. (Year). Title of article. Journal Title , volume(issue), pages. URL

Jones, L. (1990). How to eat and stay slim. Journal of Healthy Living, 4 (3), 120. http://journalofhealthyliving.org

Reference for a journal article without a DOI from a database__

Author, A. A. (Year). Title of article. Journal Title, volume (issue), pages.

Shultz, L. (2012). The traveling contractor. Urban Living , 3 (4), 1-15.

Reference for a print journal article with no DOI or URL

Author, A. A. (Year). Title of article. Journal Title , volume (issue), pages.

Shultz, L. (2012). The life of a traveling contractor. Urban Living , 3 (4), 12-15.

Reference for a print or online journal article with a DOI

Author, A. A. (date). Title of article. Journal Title, volume (issue), pages. DOI

West, B. I. (2019). A study of decisions. Academics Journal, 5 (10), 152- 155. https://doi.org/12345678910

Reference for a magazine from an online research database or in print

Author, A. A. (Year, Month day). Title of article. Periodical Title , pages. URL if online

Godwit, F. L. (2008, August 12). Epic journey of the Bar-Tail. Birding Magazine, 8 (1), 11-19. http://bit.ly.bar-tail-journey

Goldfinch, G. B. (2020, January 28). Bird migration: Tracking radar hampered by weather. The New Yorker . 12-13.

Note . Magazines may be published in regular issues and have volume and issue numbers like journals. Include the volume and issue if available in the format Title , Volume Number (Issue).

Reference for a newspaper article in print

Author, A. A. (Year, Month day). Article title. Newspaper Title . pages.

Fuller, C. (2009, August 17). Mismanagement of valley waterways causes havoc. The Clovis Herald , A3-A4.

Reference for a newspaper article online

Author, A. A. (Year, Month day). Title of article. Newspaper Title . URL

Brooks, D. (2008, December 27). Mental health issues raise concerns. New Brunswick Times . http://www.newbrunswicktimes.com

In-Text Citations for Audio Works

  • Parenthetical: (Clements, 2011, 00:54.)
  • Narrative: Clements (2011) said in his podcast, “To be terrific, you must be specific” (00:54).

Note . The citation includes the time stamp where the quoted part of the audio begins.

  • Parenthetical: (Clements 2011)
  • Narrative: Clements (2011) said in his podcast that precise wording is key to writing well.

Reference for a podcast

Host, H. H. (Host). (Year, Month day). Title of work [Description]. Publisher or Department Name, University Name. URL

Clements, K. (Host). (2020). Understanding documentation [Audio podcast]. Academic Success Center, Purdue Global. https://bit.ly/understandingdocumentation

Note . If an element shown in the template is not available, omit it from the reference entry.

Reference for a song or track

Artist, A. A. (Year). Title of song. On Title of album . Label. URL (if available)

Reference for a speech audio recording

Presenter, P. P. (Year, Month day). Title of speech [Speech audio recording]. Production Company or Site Name. URL

Kennedy, J. F. (1961). Presidential inaugural address [Speech audio recording]. American Rhetoric. https://www.americanrhetoric.com/speeches/jfkinaugural.htm

In-Text Citation for Books

  • Parenthetical: (Martinez, 2009, p. 3)
  • Narrative: Martinez (2009) said, “The way to learn APA is to use a guide as a cross-reference” (p. 3).
  • Parenthetical: (Martinez, 2009)
  • Narrative: Martinez (2009) said APA does not need to be memorized.

Reference for a book with an author, print or electronic.

Author, A. A. (Year). Title of work . Publisher. DOI (if it has one) or URL (if it is an e-book without a DOI)

Martinez, D. L. (2009). Writing with humor (2nd ed.). A1 Press. http//doi.org/10.1036/0091393733

Note . Print books may also have DOIs. Include the DOI if available.

Reference for a book with an editor, print or electronic

Editor, E. E. (Ed.). (Year). Title of work . Publisher. DOI (if it has one) or URL (if it is an e-book without a DOI)

Sexton, A. S. (Ed.). (2017). Transformational webinars. Simon and Schuster. https://doi.org/10.13232323232325

Reference for a chapter in a book with an editor

Author, A. A. & Author, B. B. (Year). Title of chapter. In E. E. Editor, F. F. Editor, & G. G. Editor (Eds.), Title of book (X ed., Vol. X, pp. xx-xx). Publisher.

Boone, J. A. & Cairns, C. A. (2008). Writer’s block demystified. In K. Clements, A. Sexton, & L. V. Hanson (Eds.), Writers write right (3rd ed., pp. 23-37). Genius Press.

Note . Omit missing elements from the reference entry, such as the volume number in this example.

Reference for an entry in a reference book with a group author (dictionary, encyclopedia, thesaurus)

Group Author. (Year, Month XX). Entry title. In Title of source . Retrieved Month day, Year, from URL

Merriam-Webster. (n.d.). Diaspora. In Merriam-Webster.com dictionary . Retrieved February 28, 2020, from https://www.merriam-webster.com/dictionary/diaspora

Note . Use “n.d.” for “no date” for entries that are continuously updated.

Note . Provide a retrieval date before the URL when the site is continuously updated and does not provide a permanent, archived link (as in a Wikipedia entry reference.

Reference for a volume in a multivolume work and a book in a series

Author, A. A. & Author, B. B. (year). Title of work (Vol. X). Publisher. DOI (if it has one) or URL (if it is an e-book without a DOI)

Breiter, A. L. & Sexton, A. (1999). Writer’s block demystified (Vol. 1). Hachette Book Group. https://doi.org/10.132444463232325 .

Author, A. A. & Author, B. B. (year). Title (X ed.). Publisher. DOI (if it has one) or URL (if it is an e-book without a DOI)

Mason, R. J. & Schram, B. L. (2016). Restaurant management (5th ed.). Randolph Press. https://doi.org/10.13244456782325

Reference for a Wikipedia entry

Entry title. (Year, Month XX). In Wikipedia . URL

Diaspora. (2020, February 28). In Wikipedia . https://bit.ly/wiki-diaspora

Note . Wikipedia entries have permanent, archived links. On the Wiki page, select “View History” then the time and date of the version you used. The link in the address bar will be an archived link to that version.

In-Text Citation for Discussions and Course Resources

  • Parenthetical: (Sullivan, 2011, para. 3)
  • Narrative: Sullivan (2011) said, “Discussions help students learn from each other’s professional experience” (para. 3).
  • Parenthetical: (Sullivan, 2011)
  • Narrative: Sullivan (2011) believes peer-to-peer learning results from discussion forums.

Reference for a classroom discussion

Author, A. A. (Year, Month day). Title or content of the post up to the first 20 words . Site Name. Retrieved Date, from https://xxx

Sullivan, M. (2011, January 5). Prewriting feedback reflection. CM107 Unit 3 Discussion 1 . Retrieved January 29, 2020, from https://purdueglobal.brightspace.com/d2l/e/40068/discussions

Note . Use a reference for internal sources only when the reader can access the source. Otherwise, cite internal sources as a personal communication with an in-text citation but no reference entry.

Reference for a course resource

Author, A. A. (Year, Month day). Title of resource . Site Name. Retrieved Date, from https://xxx

Purdue Global. (n.d.) Learning outcomes and assessment UG . Course Resources. Retrieved January 29, 2020, from https://purdueglobal.brightspace.com/d2l/le/content

Note . Include a retrieval date when a source is updated regularly and may appear different to a reader who accesses it on a different date.

In-Text Citation for Personal Communications

Quotation or paraphrase.

  • Parenthetical: (D. L. Martinez, personal communication, March 5, 2011)
  • Narrative: D. L. Martinez (personal communication, March 5, 2011) said, . . .

No Reference Entry

Works only accessible to an internal group that are not retrievable by other readers of your paper such as personal interviews, emails, text messages, conversations, memos, and lectures do not appear in a reference entry on the references page. These sources require an in-text citation only.

In-Text Citation for Reports

  • Parenthetical: (Energy Efficiency and Renewable Energy Office [EERE], 2019, Supplementary Information, para. 5).
  • Parenthetical: (EERE, 2019, Supplementary Information, para. 5).

Note . Use brackets to enclose the abbreviation of a group author name when it is first mentioned in parentheses. Use only the abbreviation of a group author if it is well known or if the full name and abbreviation have already been used in the text.

  • Narrative: The Energy Efficiency and Renewable Energy Office (EERE, 2019) reported “The cost for propane is derived from its price relative to that of heating oil”(Supplementary Information, para. 5).

Note . When page, numbers are not given, use the part of the source that would help a reader locate the quote such as the section heading and paragraph in the above examples. The cited information came from paragraph 5 under the section heading “Supplementary Information.”

  • Parenthetical: (Energy Efficiency and Renewable Energy Office [EERE], 2019)
  • Narrative: The EERE(2019) based the cost of propane on the cost of oil.

Reference for a government report with an individual author

Author, A. A. & Author, B. B. (Year). Title of report (Report No. XXX if available). Publisher. DOI or URL

Burrows, M. J. & Peter, E. (2020). What world post-Covid-19? Three scenarios . Atlantic Council. https://www.atlanticcouncil.org/in-depth-research-reports/report/what-word-post-covid-19-three-scenarios/

Note . If the report does not include a report number, omit that element from the entry.

Reference for a government report with a group or agency author

Group Author. (Year). Title of report (Report No. XXX if available). Publisher. DOI or URL

Energy Efficiency and Renewable Energy Office. (2019). Energy conservation program for consumer products: Representative average unit costs of energy (Report No. 2019-04245). US Department of Energy. https://www.regulations.gov/document?D=EERE_FRDOC_0001-1398

Note . If the author and publisher are the same, omit the publisher element from the entry.

Reference or an issue brief

Author, A. A. & Author, B. B. (Year). Title of brief [Issue brief] or (Issue Brief No. XXX if available) Publisher. DOI or URL

Salas, R. N., Knappenberger, P., & Hess, J. (2018). 2018 Lancet countdown on health and climate change brief for the United States of America [Issue brief]. Lancet Countdown. https://bit.ly/2018Lancet

In-Text Citation for Social Media

  • Parenthetical for individual author: (Hughes, 2020)
  • Parenthetical for group author: (PG Academic Success Center, n.d.)
  • Narrative for individual author: Hughes (2020) posted, “Support local businesses first! #takeouttuesday.”

Note . When quoting, include any emojis or hashtags and use the same spelling as the original post even if the spelling is incorrect.

  • Narrative for group author: PG Academic Success Center (n.d.) has on its Twitter profile that “Tutors are available throughout the week to assist and support Purdue Global students with their course work.”

Reference for a post on Facebook and others

Author, A. A. or Name of Group [Username]. (Year, Month day). Content up to the first 20 words [Description of audiovisuals such as Thumbnail with link attached, Video, or Infographic] [Type of post, for example Status update, Poll, Story]. Site Name. URL or Retrieved Month XX, Year from URL if the page (Timeline, Album, Home . . .) is regularly updated

APA Style [APAStyle]. (2020, March 16). For an #APAStyle reference to a webpage, although there may seem to be no individual authors, the author is very [Thumb-nail with link attached] [Status update]. Facebook. https://www.facebook.com/APAStyle/photos/a.419499744742118/4211771922181529/?type=3&theater

Reference for a page on Facebook and others

Author, A. A. or Name of Group [Username]. (Year, Month day). Page Name such as Home, Timeline, About. . . . Site Name. Retrieved Month XX, Year from URL

Purdue University Global [PurdueGlobal]. (n.d.). Home [Facebook page]. Facebook. Retrieved May 4, 2020 from https://www.facebook.com/PurdueGlobal/

Reference for a post on Twitter and Instagram

Author, A. A. [@username] or Group [@username]. (Year, Month day). Content up to the first 20 words [Description of audiovisuals such as an Infographic] [Type of Post]. Site Name. URL or Retrieved Month XX, Year from URL if an Instagram Highlight-a story featured on the Instagram profile

PG Academic Success Center [@PurdueGlobalASC]. (2020, March 23). Action plans for online learners: New video series [Thumb-nail with link attached] [Tweet]. Twitter. https://bit.ly/actionplansontwitter

Purdue University Global [@purdueglobal]. (n.d.). Study break [Highlight]. Instagram. Retrieved April 20, 2020 from https://www.instagram.com/stories/highlights/18021688519263190/

Reference for online forums

Author, A. A. [Username] or Name of Group [Username]. (Year, Month XX). Content of the post up to the first 20 words [Type of post]. Site Name. URL or Retrieved Month XX, Year from URL if referencing a page that is regularly updated.

National Aeronautics and Space Administration [nasa]. (2020, March 17). We are the NASA and university scientists who study exoplanets, the weird and wonderful planets beyond our solar system [Online forum post]. Reddit. https://reddit.com/r/space/comments/g35wtm/we_are-the-nasa-and_university-scientists_who/

In-Text Citation for Video Works

  • Parenthetical: (Lessard, 2016, as cited in Michigan DNR, 2016, 0:27)

Note . See the Primary Sources sectin of this article for more about the “as cited in format. In this example, Lessard is a primary source speaking in a vido by the Michigan DNR, which is the secondary source. Include the publication date of the primary source when available.

  • Narrative: Rebecca Lessard, Founder/Director of Wings of Wonder, (2016, as cited in Michigan DNR, 2016) said, “The mission here is really about education” (0:27).
  • Parenthetical: (Lessard, 2016, as cited in Michigan DNR, 2016)
  • Narrative: Rebecca Lessard, Founder/Director of Wings of Wonder (2016, as cited in Michigan DNR, 2016) described the mission as one that teaches people to respect and appreciate raptors.

Reference for a film

Director, D. D. (Director). (Year). Title of work [Film]. Production Company. URL if film is accessible by an URL

Gondry, M. (Director). (2004). Eternal sunshine of the spotless mind [Film]. Anonymous Content.

Reference for a recorded webinar

Instructor, I. I. (Year, Month day). Title of work [Webinar]. Publisher. URL

Huston, T. (2020, March 17). Critical thinking and writing [Webinar]. Purdue Global Academic Success Center. https://bit.ly/asc-criticalthinking

Note . If the webinar is not retrievable at a link online, cite it as a personal communication.

Reference for a YouTube video or other streaming video

Reference for a recorded webinar (if the recording is retrievable; otherwise, cite as a personal communication.) Instructor, I. I. (Instructor) (Year, Month XX). Title of work [Webinar]. Publisher. URL

Huston, T. (Instructor). (2020, March 17). Critical thinking and writing [Webinar]. Academic Success Center, Purdue Global. https://bit.ly/asc-criticalthinking

Reference for a YouTube video or other streaming video Artist, A. A. [username]. (year, Month XX). Title [Video]. Production Company, Label, or Site. URL

Michigan Department of Natural Resources [MichiganDNR]. (2016, November 10). Wings of Wonder: Raptor education, rehabilitation and research. [Video]. YouTube. https://youtu.be/m4jgfaxfo4k

In-Text Citation for Visual Works

  • Parenthetical: (Park, 2015, slide 9)
  • Narrative: During her presentation, Park (2015) stated, “All parties must be equally represented at all meetings” (slide 9).
  • Parenthetical: (Park, 2015)
  • Narrative: Park (2015) said representation of every member is important at meetings.

Reference for a photograph

Artist, A. A. (Year). Title [Photograph]. Publisher or Site Name. URL

Cairns, C. (2015). Lilies after rain. [Photograph]. Flickr. https://www.flickr.com/photos/scotlandcairns/19461114229/

Note. Using a photograph in your work that is not yours, is not in the Public Domain, or that does not have a Creative Commons license that permits use, requires permission to use in addition to a copyright note. If you have permission to use the image or the image is licensed for sharing, include a copyright notice underneath or aligned with the image in your text. The example below shows how to cite or quote from a PowerPoint or presentation slide.

Template and Examples for a Copyright Note in Text beginning with the label “ Note. “:

Note . Title and description. From (or “Adapted from” if you changed or cropped the original), Title of Image, by Name of A. Artist, Year. (URL). Copyright by Copyright Holder or Creative Common License abbreviation or In the public domain. Reprinted with permission (if permission was sought and granted).

Note . Tiger lilies holding water droplets. From Lilies After Rain , by C. Cairns, 2015. https://flic.kr/p/vDHife . CC BY 2.0.

Reference for a PowerPoint or presentation slide

Instructor, I. I. (Year, Month XX). Title [PowerPoint Slide]. Production Company or Department Name, University Name. URL

Park, L. (2011). Effective working teams [PowerPoint slides]. Bus Purdue Global. http://www.company.meetings/teams

In-Text Citation for Webpages and Websites

  • Parenthetical: (Smith & Jay, 2013, para. 10)
  • Narrative: Smith and Jay (2013) are sure that the best way to “preserve nature is to plant native trees” (para. 10).

Note . When page numbers are not given, use the section heading and/or paragraph number.

  • Parenthetical: (Smith & Jay, 2013)
  • Narrative: Smith and Jay (2013) believe the seeds of native trees are the key to environmental salvation.

Note. Use the title in the in-text citation for a work without an author as shown below.

  • Parenthetical: ( Raising Roofs , n.d.)
  • Narrative: Following the county’s affordable housing initiative, Raising Roofs (n.d.) reported 100 new homes have been built.

Reference for a website or webpage with an individual author

Author, A. A., & Author, B. B. (Year or Year, Month day if available). Title of work . Site Name. URL or Retrieved Month XX, Year from URL if website is regularly updated.

Smith, M., & Jay, J. (2013). Growing a better forest . Leelanau Trees. http://www.leelanautrees/plant-native-trees.com

Reference for a website or webpage with a group author such as an organization or company

Author. (Year, Month day). Title of page . Site Name. URL or Retrieved Month XX, Year from URL if page is regularly updated.

National Geographic. (2011a). Hybrid Cuban-American crocodiles on the rise . http://bit.ly/24ndK95

National Geographic. (2011b). Iceman’s stomach sampled – filled with goat meat . http://bit.ly/1QAf58E

Note . When using two or more sources with the same author and year, add lowercase letters after the year (2015a, 2015b, etc.). First alphabetize the references by author name and then by title to determine which is “a” and which is “b.” Then also add the letters to the corresponding in-text citations. If the site name is the same as the author, omit the site name element from the reference.

Reference for a webpage with no individual or group author

Title of page . (Year, Month XX or n.d. if a date isn’t available). Site Name. URL or Retrieved Month XX, Year from URL if citing a page that is regularly updated.

Raising roofs . (n.d.). http://www.raisingroofs.com

Sometimes there is missing information when formatting in-text citations and references. The following serves as guidance on how to handle those situations.

Missing month and/or day; missing volume and/or issue number; other missing information from template of reference citation : If a reference entry template shows to include information that is not available, omit the missing elements from the entry.

If a work does not specify an author, use the title in place of the author.

In-Text-Citation

  • For a paraphrase from an article with no author: (“Whales in the Ocean,” 2020)
  • For a quotation from a book with no author: ( Plant-Based Cooking , 2020, para. 9)

Reference Entry

  • The reference list entry for an article with no author begins with the title in sentence case (capitalizing the first word only and any proper nouns):

Whales in the ocean. (2020). Ocean Life Magazine . https://www.oceanlife.com

  • The reference list entry for a book, webpage, or other whole work without an author begins with the title in sentence case and italics:

Plant-based cooking . (2020). https://www.plant-basedcookingebook.com

  • Only use “Anonymous” as the author if the work specifically names the author as “Anonymous”: (Anonymous, n.d.).

If no date is provided on the source, use n.d. in the date spot for both in-text citations and reference list entries. For example, an in-text citation would look like this: (Hendrix, n.d.).

Primary sources are original reports, findings, and research studies. Secondary sources are works that refer to primary sources and other secondary sources. If you are using a secondary source for your research, and it refers to another source or a primary source, whenever possible, locate the original source of the desired quote or paraphrase. If the original source is not available, use this “as cited in” method by citing the secondary source that you have while still attributing the quote in text to the original author or source.

In-Text Citation for Primary Sources

  • Parenthetical: (Wright, 2012, as cited in Bragdon, 2013, p. 223).
  • Narrative: Wright’s report (2012, as cited in Bragdon, 2013) showed that “obesity research indicates people need to drink more water” (p. 223).

Note . Omit the year for the primary source from the citation if the year is unknown.*

  • Parenthetical: (Wright, 2012, as cited in Bragdon, 2013).
  • Narrative: Wright (2012, as cited in Bragdon, 2013) showed dehydration was a common problem for those with obesity.

Reference for the Secondary Source

Follow the template for the type of source it is. The example shows the format for a journal article without a URL or DOI.

Bragdon, A. A. (2013). Obesity research. Medical Journal 23 (4), 223-227.

Note . Only list the source named after the “as cited in” phrase on the reference list.

Multiple Authors

Two authors.

For in-text citations, cite both names every time:

  • (Rios & Sexton, 2010) or Rios and Sexton (2010) contend . . .

Note . The ampersand (&) is used between two authors when their names are written in parentheses but not when the names are written in the narrative of the sentence.

For reference list entries, cite both authors’ names (with the ampersand [&] between the names):

Rios, C. A. & Sexton, A. (2010). Fun and easy APA . Oxbow River Press.

Three or More Authors

For in-text citations, cite only the first author followed by et al.:

  • (Cairns et al., 2019)
  • Cairns et al. (2019) studied . . .

Note . Et al. is a Latin abbreviation for “and others.”

For a reference list entry, cite the first 20 author names. Use an ampersand (&) before the last author’s name:

Author, A. A., Author B. B., Author, C. C., Author, D. D., Author, E. E., Author, F. F., Author, G. G., Author, H. H., Author, I. I., Author, J. J., Author, K. K., Author, L. L., Author, M. M., Author, N. N., Author, O. O., Author, P. P., Author, Q. Q., Author, R. R., Author, S. S., & Author, T. T.

For 21 or more authors, use three spaced ellipsis points ( . . . ) after the 19th author and then cite the last author’s name without an ampersand (&):

Author, A. A., Author B. B., Author, C. C., Author, D. D., Author, E. E., Author, F. F., Author, G. G., Author, H. H., Author, I. I., Author, J. J., Author, K. K., Author, L. L., Author, M. M., Author, N. N., Author, O. O., Author, P. P., Author, Q. Q., Author, R. R., Author, S. S., . . . Author, W. W.

Authors With the Same Surname

If you have two or more different sources that have authors with the same surname, include the author’s first name initial in the in-text citation for the source used even if the date is different like this: (D. Martinez, 2001).

A narrative citation would look like this:

  • D. Martinez (2001) disagreed with S. Martinez (2003) in the findings . . .

In the reference list, D. Martinez would be alphabetized before S. Martinez.

Same Author and Year

To tell references and in-text citations apart when the author and year are the same, add lowercase letters after the year (2011a, 2011b, etc.). On the references list, first list the references in alphabetical order by the authors’ last names, then alphabetize the references by the title to determine which is “a” and which is “b.”

Hood, R. M. (2011a). Where do I place commas? [Video]. YouTube. https://www.youtube.com/123comma

Hood, R. M. (2011b). The writing process [Video]. YouTube. http://www.youtube.com/abc-thewritingprocess

Then, add the letters to the corresponding in-text citations: (Hood, 2011a) (Hood, 2011b).

Sample Title Page for Student Papers n APA Style

Sample Title Page APA 7th Ed.

Notes on this sample title page for student papers:

  • In the header of the document at the right margin, insert the page number.
  • In the upper half of the page, three to four lines down from the header, provide the title of the paper in bold, Title Case.
  • Double-space the title page and entire paper, adding an additional double-spaced line between the title and the “byline”—author name.
  • Provide the byline and related information in regular font. First provide the author’s name and affiliated university.
  • Next, provide the course number and name (Course Number: Name), the professor for the course, and due date.
  • Always check with your instructor about additional information required on this page.

Sample Text Page for a Student Paper in APA Style

Sample Body Page APA 7th Ed.

Notes on this sample text (body) page for student papers:

  • The font should be the same throughout the paper. A default word processing font such as 11-point Calibri is recommended. Other acceptable fonts are 11-point Arial, 12-point Times New Roman,10-point Lucida Sans Unicode, 11-point Georgia, or 10-point Computer Modern.
  • Use 1-in. (2.54-cm) margins all around.
  • The text should align with the left margin and be uneven along the right margin with one space between words and after punctuation.
  • Double-space the entire paper without extra spacing between paragraphs.
  • Indent the beginning of each paragraph 0.5 in., which is typically one click of the Tab key.

Sample Reference List for Student Papers in APA Style

Sample Reference List APA 7th Ed.

Notes on this sample reference list for student papers:

  • The reference list begins on a new page at the end of the paper before any tables or appendices.
  • The right margin of the header provides the page number, continued from the previous page.
  • The word References is centered on the first line under the header in bold font.
  • The citations are formatted using a “hanging indent” where the second and subsequent lines are indented 0.5 in. under the first line in order to improve readability.
  • Double-space the reference list, including within a reference entry.
  • Two or more works by the same author are ordered chronologically by publication date.
  • References with the same first author and a different second author are alphabetized by the second author.

American Psychological Association. (2020). Publication manual of the American Psychological Association: The official guide to APA style (7th ed.). https://doi.org/10.1037/0000165-000

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How to reference this resources in APA Style 7th Ed.

Purdue University Global Academic Success Center and Writing Center. (2020). Common citations and references in APA style (7th ed.). Purdue Global Academic Success and Writing Resource Center and Blog. https://purdueglobalwriting.center/common-citations-and-references-in-apa-style/

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I rely on this page in every class. It’s a great reference!

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  1. Apa Format Purdue Owl Example

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  3. Purdue Owl Apa In Text Citation Multiple Authors : General Format

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  1. APA 7th Edition: References Lists

  2. APA

  3. Using the OWL Purdue

  4. Before apa

  5. what apa what apa what apa

  6. Purdue OWL: Memo Writing Part 3

COMMENTS

  1. Reference List: Author/Authors

    The following rules for handling works by a single author or multiple authors apply to all APA-style references in your reference list, regardless of the type of work (book, article, electronic resource, etc.). Cite your source automatically in APA Cite Using citation machines responsibly Powered by

  2. In-Text Citations: Author/Authors

    The APA manual recommends the use of the author-date citation structure for in-text citation references. This structure requires that any in-text citation (i.e., within the body of the text) be accompanied by a corresponding reference list entry. In the in-text citation provide the surname of the author but do not include suffixes such as "Jr.".

  3. APA Formatting and Style Guide (7th Edition)

    Basic Rules Basic guidelines for formatting the reference list at the end of a standard APA research paper Author/Authors Rules for handling works by a single author or multiple authors that apply to all APA-style references in your reference list, regardless of the type of work (book, article, electronic resource, etc.) Articles in Periodicals

  4. In-Text Citations: The Basics

    When using APA format, follow the author-date method of in-text citation. This means that the author's last name and the year of publication for the source should appear in the text, like, for example, (Jones, 1998). One complete reference for each source should appear in the reference list at the end of the paper.

  5. APA Style Introduction

    Purdue OWL Research and Citation APA Style (7th Edition) APA Style Introduction APA Style Introduction These OWL resources will help you learn how to use the American Psychological Association (APA) citation and format style.

  6. Reference List: Basic Rules

    Separate each author's initials from the next author in the list with a comma. Use an ampersand (&) before the last author's name. If there are 21 or more authors, use an ellipsis (but no ampersand) after the 19th author, and then add the final author's name.

  7. APA Citation Style, 7th edition: Three to Five Authors or Editors

    For more tips on paraphrasing check out The OWL at Purdue. In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote. References - entry that appears at the end of your paper.

  8. APA Citation Format

    APA Citation Information. APA 7th Edition Citation Format instructions--Purdue Online Writing Lab (OWL) ... (three copies at HSSE reference desk, one in HICKS) ISBN: 9781433832161. Publication Date: 2020 << Previous: Reference Sources incl. DSM-5; Next: Testing & Measurement Resources >> Last Updated: Dec 7, 2023 8:40 AM;

  9. Purdue Owl: APA Formatting & Style Guide

    Developed by Purdue's Online Writing Lab. Contains resources on in-text citation and the references page, as well as APA sample papers, slide presentations, and the APA classroom poster. Author/Editor (By:)

  10. APA Formatting and Style Guide

    This resource was written by David Neyhart and Erin Karper. Last full revision by Jodi Wagner. Last edited by Dana Lynn Driscoll on May 17th 2007 at 3:24PM. Summary: APA (American Psychological Association) is most commonly used to cite sources within the social sciences. This resource, revised according to the 5th edition of the APA manual, offers examples for the general format of APA ...

  11. APA Citation Style

    A self-paced tutorial for the beginner. Purdue OWL (Online Writing Lab) tutorials Short YouTube videos on the APA style. APA Guidelines & Expectations Download the Guidelines for APA Writing Style and Format file. Using APA to Cite Sources Avoiding plagiarism, self-plagiarism, and other questionable writing practices: A guide to ethical writing

  12. Author-date citation system

    Use the author-date citation system to cite references in the text in APA Style. In this system, each work used in a paper has two parts: an in-text citation and a corresponding reference list entry. In-text citations may be parenthetical or narrative. In parenthetical citations, use an ampersand (&) between names for a work with two authors ...

  13. Three or More Authors

    Three or More Authors - Excelsior OWL Citation & Documentation » APA Style » APA In-Text Citations » Three or More Authors Three or More Authors 7th Edition 6th Edition Starting with the first author mentioned in the text, the correct format is (Author et al., year). This includes even the first citation.

  14. APA In-Text Citations (7th Ed.)

    In-text citations briefly identify the source of information in the body text. They correspond to a full reference entry at the end of your paper. APA in-text citations consist of the author's last name and publication year. When citing a specific part of a source, also include a page number or range, for example (Parker, 2020, p.

  15. C. Three to Five Authors or Editors

    If you are dealing with a book that has three to five editors instead of authors, you would simply insert the names of the editors into the place where the authors' names are now, followed by " (Eds.)" without the quotation marks ( as per the example ). The rest of the format would remain the same. General Format In-Text Citation (Paraphrase):

  16. APA Style Guide

    Purdue's OWL (Online Writing Lab) provides instruction on how to use APA 7th. Below are a few topics covered by the OWL. ... APA Overview and Workshop APA 7th. General Formatting APA 7th. In-Text Citation: Authors APA 7th. Foot Notes and Appendices APA 7th. Changes in the 7th Edition APA 7th << Previous: Purdue Online Writing Lab; Next ...

  17. How to cite in APA when there are multiple authors

    When citing a journal paper in APA with three or more authors, only enter the last name of the first author listed and add "et al." after it. "Et al." is Latin for the phrase "and others," which is why it is used as a substitute for two or more authors' last names. Parenthetical citation for three or more authors:

  18. 4.3: APA Format

    As illustrated in your manual and the APA sample paper provided on Purdue OWL at https://owl.english.purdue.edu/media ... More Than 3 Authors--List all names in the first citation then use "et al." for all other following citations. What the first citation would look like:

  19. Common Citations and References in APA Style (7th Ed.)

    In-Text Citations Narrative Citations Parenthetical Citations Author Names Electronic Publications: Page Numbers Reference List Entries DOIs (Digital Object Identifiers) and URLs (Uniform Resource Locators) Common Citations and References (APA 7th Ed.) Note: Most of the examples in this resource are fictional.

  20. PDF APA Formatting and Style Guide

    3/18/2015 2 General Format • be typed and double-spaced be printed on standard-sized paper (8.5"x11") • use 1" margins on all sides • use 10-12 pt. Times New Roman or a similar font • include a page header (title) in the upper left-hand of every page and a page number in the upper right-hand side of every page Note: If you are writing a manuscript draft, APA

  21. Secondary sources

    In scholarly work, a primary source reports original content; a secondary source refers to content first reported in another source. Cite secondary sources sparingly—for instance, when the original work is out of print, unavailable, or available only in a language that you do not understand. If possible, as a matter of good scholarly practice ...