Cita APA (7th ed.)
Feldman, R. S. (1996). Understanding psychology (4th. ed.). MacGraw-Hill.
Cita Chicago (17th ed.)
Feldman, Robert S. Understanding Psychology. 4th. ed. Boston: MacGraw-Hill, 1996.
Cita MLA (9th ed.)
Feldman, Robert S. Understanding Psychology. 4th. ed. MacGraw-Hill, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.