Feldman, R. S. (2005). Understanding Psychology (7th ed.). McGraw-Hill Companies, Inc..
Cita Chicago (17th ed.)Feldman, Robert S. Understanding Psychology. 7th ed. Boston: McGraw-Hill Companies, Inc., 2005.
Cita MLA (9th ed.)Feldman, Robert S. Understanding Psychology. 7th ed. McGraw-Hill Companies, Inc., 2005.
Atenció: Aquestes cites poden no estar 100% correctes.