Cita APA (7th ed.)
(1994). Publication manual of the American Psychological Association (4th ed.). American Psychological Association.
Cita Chicago (17th ed.)
Publication Manual of the American Psychological Association. 4th ed. Washington DC: American Psychological Association, 1994.
Cita MLA (9th ed.)
Publication Manual of the American Psychological Association. 4th ed. American Psychological Association, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.