The References page is located at the end of the main body of the paper and begins at the top of a new page. Appendices, footnotes, and additional materials should follow after the References page.
Like the rest of the paper, the References page should be double-spaced and typed in Times New Roman, 12 pt. The running head should appear flush with the upper left-hand corner of the page, and the page number should appear at the upper right-hand corner of the page.
The title of the References page is capitalized and centered at the top of the page without any formatting, including bold, italics, underlining, or quotation marks. Avoid mislabeling the References page as “Works Cited,” “Sources,” or “Bibliography.”
Each entry should be formatted as a hanging indentation: the first line of each citation should be flush with the left margin while each subsequent line of the citation is indented five spaces from the left margin. Alphabetize the entries in the References page based on the authors’ last names (or the first word of a work’s title, if a work does not name any authors). Though it will vary from source to source, the general structure of a print book citation is as follows:
Author Last Name, Initials. (Year of publication). Title of the work. Publication city: Publishing Company.
Electronic sources generally require more information than print sources, such as a uniform resource locator (URL), a digital object identifier (DOI), or the date the source material was accessed.
When a source released by an organization does not include the names of the authors involved, simply cite the name of the organization in place of the author’s name. However, if the name of the sponsoring organization is unavailable, the title of the work appears in place of the author’s name. When citing a source authored by seven or more individuals, use ellipsis points between the sixth author’s name and the last author’s name; the ellipsis points should replace the omitted names of the authors between the sixth and last author.
Following is a list of sample citations for commonly used sources. Consult the current edition of the Publication Manual of the American Psychological Association (6th ed.) for a complete list of guidelines for formatting entries on the references page.
Hoppensteadt, F. C. (1997). An introduction to the mathematics of neurons: Modeling in the frequency domain. New York, NY: Cambridge University Press.
Book with Multiple Authors
Two or more authors
Pandi-Perumal, S. R., Cardinali, D. P., & Chrousos, G. (2007). Neuroimmunology of sleep. New York, NY: Springer.
Seven or more authors
Krauss, H., Weber, A., Appel, M., Enders, B., Isenberg, H. D., Schiefer, H. G., . . . Zahner, H. (2003). Zoonoses: Infectious diseases transmissible from animals to humans. Washington, DC: ASM Press.
Book by an Association or Organization
American Psychological Association. (2010). Publication manual of the American Psychological Association (6th ed.). Washington, DC: Author.
Article or Chapter in an Edited Collection
Riding, R. (2001). The nature and effects of cognitive style. In Sternberg, R. J., & Zhang, L.-F. (Eds.), Perspectives on thinking, learning, and cognitive styles (pp. 47-72). Mahwah, NJ: Lawrence Erlbaum.
Collected Content in an Edited Book
Gray, W. D. (Ed.). (2007). Integrated models of cognition systems. New York, NY: Oxford University Press.
Reynolds, W. M., & Johnston, H. F. (Eds.). (1994). Handbook of depression in children and adolescents. New York, NY: Plenum Press.
Article in Print Periodical
With DOI: Marsh, J. K., & Ahn, W. (2012). Memory for patient information as a function of experience in mental health. Journal of Applied Cognitive Psychology, 26(3), 462-474. doi:10.1002/acp.2832
Without DOI: Murphy, V. M. (1960). Anxiety: Common ground for psychology and sociology. The American Catholic Sociological Review, 21(3), 213-220.
Book in Electronic Form
Levitin, D. J. (2002). Foundations of cognitive psychology: Core readings. Retrieved from http://ehis.ebscohost.com
Article in Online Periodical
With DOI: Oruç, I., Krigolson, O., Dalrymple, K., Nagamatsu, L. S., Handy, T. C., & Barton, J. S. (2011). Bootstrap analysis of the single subject with event related potentials. Journal of Cognitive Neuropsychology, 28(5), 322-337. doi:10.1080/02643294.2011.648176
Without DOI: Niccolai, V., Jennes, J., Stoerig, P., & Van Leeuwen, T. M. (2012). Modality and variability of synesthetic experience. The American Journal of Psychology, 125(1), 81-94. Retrieved from JSTOR database at http://www.jstor.org/
Article from a Webpage
By Multiple Authors
Vorvick, L. J., Longstreth, G. F., & Zieve, D. (2011, January 10). E. coli enteritis. Retrieved from http://www.nlm.nih.gov/medlineplus/ency/article/000296.htm
By an Organization/Group
Centers for Disease Control and Prevention. (2012). Lead. Retrieved from http://www.cdc.gov/niosh/topics/lead/
Unknown Author, Unknown Date
Water, carbon and nitrogen cycle. (n.d.) Retrieved from [list url]
Learn how to format the References page of your paper in APA style.