American Psychological Association. (2005). Concise rules of APA style. American Psychological Association.
Chicago-referens (17:e uppl.)American Psychological Association. Concise Rules of APA Style. Washington, D.C: American Psychological Association, 2005.
MLA-referens (9:e uppl.)American Psychological Association. Concise Rules of APA Style. American Psychological Association, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.