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AP Photo/The Journal and Courier, Tom Leniniger

APPENDIX
B
Documenting Sources: APA

American Psychological Association (APA) documentation style is commonly used in the social sciences. In APA style, parenthetical references refer readers to sources in the list of references at the end of the paper. * Parenthetical citations must be provided for all sources that are not common knowledge, whether you are summarizing, paraphrasing, or quoting.

Using Parenthetical References

In APA style, parenthetical references refer readers to sources in the list of references at the end of the paper. A typical parenthetical reference includes the author’s last name (followed by a comma) and the year of publication: (Vang, 2015). Here are some guidelines for specific situations.

  • If the author’s last name appears in the text, follow it with the year of publication, in parentheses: According to Vang (2015), recent studies suggest …

  • When quoting from a source, include a page number, if available: (Vang, 2015, p. 33). Once you have cited a source, you can refer to the author a second time without the publication date so long as it is clear you are referring to the same source: Vang also found …

  • If no author is identified, use a shortened version of the title: (“Mind,” 2015).

  • If you are citing multiple works by the same author or authors published in the same year, include a lowercase letter with the year: (Peters, 2014a), (Peters, 2014b), and so on.

    *American Psychological Association, Publication Manual of the American Psychological Association, Sixth Edition (2010).

  • When a work has two authors, cite both names, separated by an ampersand, and the year: (Tabor & Garza, 2006). For three to five authors, in the first reference, cite all authors, along with the year; for subsequent references, cite just the first author, followed by et al When a work has six or more authors, cite just the first author, followed by et al and the year: (McCarthy et al., 2010).

  • Omit page numbers or dates if the source does not include them. (Try to find a .pdf version of an online source; it will usually include page numbers.)

  • If you quote a source found in another source, cite the original author and the source in which you found it: Psychologist Gary Wells asserted … (as cited in Doyle, 2005, p. 122)

  • Include in-text references to personal communications and interviews by providing the person’s name, the phrase “personal communication,” and the date: (J. Smith, personal communication, February 12, 2015). Do not include these sources in your reference list.

If a direct quotation is forty words or less, include it within quotation marks without separating it from the rest of the text. When quoting a passage of more than forty words, indent the entire block of quoted text one-half inch from the left margin, and do not enclose it in quotation marks. It should be double-spaced, like the rest of the paper. Place parenthetical documentation one space after the final punctuation.

Preparing a Reference List

Start your list of references on a separate page at the end of your paper. Center the title References at the top of the page, and follow these guidelines:

  • Begin each reference flush with the left margin, and indent subsequent lines one-half inch. Double-space the reference list within and between entries.

  • List your references alphabetically by the author’s last name (or by the first major word of the title if no author is identified).

  • If the list includes references for two sources by the same author, alphabetize them by title.

  • Italicize titles of books and periodicals. Do not italicize article titles or enclose them in quotation marks.

  • For titles of books and articles, capitalize the first word of the title and subtitle as well as any proper nouns. Capitalize words in a periodical title as they appear in the original.

When you have completed your reference list, go through your paper and make sure that every reference cited is included in the list in the correct order.

Examples of APA Citations

The following are examples of APA citations.

Periodicals

Article in a journal paginated by volume

Shah, N. A. (2006). Women’s human rights in the Koran: An interpretive approach. Human Rights Quarterly, 28, 868–902.

Article in a journal paginated by issue

Lamb, B., & Keller, H. (2007). Understanding cultural models of parenting: The role of intracultural variation and response style. Journal of Cross-Cultural Psychology, 38(1), 50–57.

Magazine article

Von Drehle, D. (2015, April 20). Line of fire. Time, 185(14), 24–28.

Newspaper article

DeParle, J. (2009, April 19). Struggling to rise in suburbs where failing means fitting in. The New York Times, pp. A1, A20-A21.

Books

Books by one author

Jordan, Jennifer A. (2015). Edible memory: The lure of heirloom tomatoes and other forgotten foods. Chicago, IL: University of Chicago Press.

Books by two to seven authors

McFadden, J., & Al-Khalili, J. (2014). Life on the edge: The coming of age of quantum biology. New York, NY: Crown.

Books by eight or more authors

Barrett, J. M., Smith, V., Wilson, R. T., Haley, V. A., Clarke, P., Palmer, N. B., … Fraser, D. (2012). How to cite references in APA style. New York: Cambridge University Press.

Edited book

Brummett, B. (Ed.). (2008). Uncovering hidden rhetorics: Social issues in disguise. Los Angeles, CA: Sage.

Essay in an edited book

Alberts, H. C. (2006). The multiple transformations of Miami. In H. Smith & O. J. Furuseth (Eds.), Latinos in the new south: Transformations of place(pp. 135–151). Burlington, VT: Ashgate.

Translation

Piketty, T. (2015). The Economics of inequality (A. Goldhammer, Trans.). Cambridge, MA: Harvard University Press.

Revised edition

Johnson, B., & Christensen, L. B. (2008). Educational research: Quantitative, qualitative, and mixed approaches (3rd ed.). Los Angeles, CA: Sage.

Internet Sources

Entire website

Secretariat of the Convention on Biological Diversity. (2015). Convention on biological diversity. Retrieved from https://www.cbd.int/

Web page within a website

The great divide: How Westerners and Muslims view each other. (2006, July 6). In Pew global attitudes project. Retrieved from http://pewglobal.org/reports/display.php?ReportID=253

University program website

National security archive. (2009). Retrieved from George Washington University website: http://www.gwu.edu/~nsarchiv/

Journal article found on the Web with a DOI

Because websites change and disappear without warning, many publishers have started adding a Digital Object Identifier to their articles. A DOI is a unique number that can be retrieved no matter where the article ends up on the Web.

To locate an article with a known DOI, go to the DOI system website at http://dx.doi.org/ and type in the DOI number. When citing an article that has a DOI (usually found on the first page of the article), you do not need to include a URL in your reference or the name of the database in which you may have found the article.

Geers, A. L., Wellman, J. A., & Lassiter, G. D. (2009). Dispositional optimism and engagement: The moderating influence of goal prioritization. Journal of Personality and Social Psychology, 94, 913–932. doi:10.1037/a0014746

Journal article found on the Web without a DOI

Bendetto, M. M. (2008). Crisis on the immigration bench: An ethical perspective. Brooklyn Law Review, 73, 467–523. Retrieved from http://brooklaw.edu/students/journals/blr.php/

Journal article from an electronic database

The name and URL of the database are not required for citations if a DOI is available. If no DOI is available, provide the home page URL of the journal or of the book or report publisher.

Staub, E., & Pearlman, L. A. (2009). Reducing intergroup prejudice and conflict: A commentary. Journal of Personality and Social Psychology, 11, 3–23. Retrieved from http://www.apa.org/journals/psp/

Electronic book

Katz, R. N. (Ed.). (2008). The tower and the cloud: Higher education in an era of cloud computing. Retrieved from http://net.educause.edu/ir/library/pdf/PUB7202.pdf

Video blog post

Green, J. (2015, July 7). Understanding the financial crisis in Greece [Video file]. Retrieved from https://www.youtube.com/watch?v=tigaryz-1y4

Presentation slides

Hall, M. E. (2009) Who moved my job!? A psychology of job-loss “trauma” [Presentation slides]. Retrieved from http://www.cew.wisc.edu/docs/WMMJ%20PwrPt-Summry2.ppt

Student Essay

The following research paper, “The High Cost of Cheap Counterfeit Goods,” follows APA format as outlined in the preceding pages.

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