American Psychological Association. (2002). Publication Manual of the American Psychological Association (quinta edición.). American Psychological Association.
Chicago-referens (17:e uppl.)American Psychological Association. Publication Manual of the American Psychological Association. quinta edición. Washington D.C: American Psychological Association, 2002.
MLA-referens (9:e uppl.)American Psychological Association. Publication Manual of the American Psychological Association. quinta edición. American Psychological Association, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.