Examples are based on the Publication Manual of the American Psychological Association, 6th edition, and assistance provided by APA editorial staff. When available, APA rule numbers are referenced.
In addition to having a references list at the end of your paper, you must give credit to sources that you use within your paper. Usually the author's last name and publication date are enough for the reader to identify the complete reference in the references list. See the examples below for variations of this general rule.
If you cite the author's name in your paper, cite only the publication year in parentheses after the author's name.
Example
In Silent Spring, Carsen (1962) made an intelligent and passionate case for the immediate cessation of careless and pervasive pesticide use.
References
Carsen, R. (1962). Silent spring. Greenwich, CT: Fawcett.
APA Manual 6.11 (p. 174)
If you do not cite the author's name in your paper, then include both the author's last name and the publication year in parentheses at the end of the sentence separated by a comma.
Example
Silent Spring was one of the first books to discuss dangers of pesticide use (Carsen, 1962).
References
Carsen, R. (1962). Silent spring. Greenwich, CT: Fawcett.
APA Manual 6.11 (p. 174)
Cite both authors' last names and the publication date every time you refer to the work in your paper. In parentheses, use an ampersand (&) to separate the authors' names.
Example
They believe that a key aspect of the growth of dance on the American cultural scene has been the expansion of dance education in varied forms (Kraus & Hilsendager, 1981).
References
Kraus, R. G., & Hilsendager, S. C. (1981). History of the dance in art and education. Englewood Cliffs, NJ: Prentice-Hall.
Cite all the authors' last names and the publication date the first time you refer to the work. If you refer the work again, cite the first author's last name followed by et al.
Example
Oliver, Chiras, and Reganold (2004) offer sustainable solutions to global resource and environmental problems.
Oliver et al. argue that...
References
Oliver, O. S., Chiras, D. D., & Reganold, J. P. (2004). Natural resource conservation (9th ed.). Upper Saddle River, NJ: Simon & Schuster.
Cite the last name of the first author followed by et al. and the publication date the first time you refer to a work and in each new paragraph. If you cite the work again in the same paragraph, do not include the year of publication.
Examples
Knight et al. (2002) found that college students have been exposed to alcohol before attending college.
In the research study, Knight et al. focused on interviewing undergraduate students.
References
Knight, J. R., Wechsler, H., Kou, M., Seibering, M., Weitzman, E. R., & Schuckit, M. A. (2002). Alcohol abuse and dependence among U.S. college students Journal of Studies on Alcohol, 63(3), 263-271.
APA Manual 6.12 (p. 175)
When there is no author listed for a work, include the first few words of the title followed by the publication year in parentheses at the end of the sentence.
Example
Many in the liquor industry argue that the ban on television liquor advertising gives those in the beer and wine industry an unfair advantage ("Liquor Advertising," 2002).
References
Liquor advertising on TV. (2002, January 18). In Issues & Controversies. Retrieved from http://www.fofweb.com/
APA Manual 6.15 (p. 176)
When you quote or paraphrase a specific part of a print or online source give the relevant page, chapter, figure, table or equation in parentheses at the end of the sentence after the author's last name and publication date.
Example
"Time management is an important survival skill" (Brown, 2003, p. 6).
References
Brown, D. C. (2003). No time for time management? Behavioral agencies have several options for improving staff efficiency. Behavioral Healthcare Tomorrow, 12(6), 27-30.
In an online source that does not provide page numbers, give the paragraph number, preceded by the ? symbol or the abbreviation para. after the author's last name and publication date.
Examples
The water level in the Great Lakes has gone down in recent years (Assel, 2004, para. 5).
References
Assel, R. A. (2004). Hydroclimatic factors of the recent record drop in Laurentian Great Lakes water levels. Bulletin of the American Meteorological Society, 85, 1143-1151.
APA Manual 6.19 and 6.05 (p. 179 and 171-172)
References to personal communications do not appear in the reference list. Personal communication references in text should provide the initials and last name of the person and the exact date of the communication.
Examples
J. J. McKenzie (personal communication, August 30, 2002) confirmed that he was one of the unofficial organizers of the teachers' strike.
He confirmed that he was one of the unofficial organizers of the teachers' strike (J. J. McKenzie, personal communication, August 30, 2002).
APA Manual 6.20 (p. 179)
Whenever possible, use original source material, not secondary. If you must use an indirect source, include the primary source in the paper and the secondary source in the reference list. For example, if you read about Fruzetti's work in an article by Martens, include Fruzetti in the in-text citation and Martens in your reference list.
Example
Fruzetti explained that no effective treatments for borderline patients had been established until the past decade (as cited in Martens, 2005)
References
Martens, W.H. (2005). Therapy on the borderline: Effectiveness of dialectical behavior therapy for patients with borderline personality disorder. Annals of the American Psychotherapy Association, 8(4) 5-13.
APA Manual 6.17 (p. 178)