Feldman, R. S. (2011). Understanding Psychology (10th ed.). McGraw-Hill Companies, Inc..
Cita Chicago (17th ed.)Feldman, Robert S. Understanding Psychology. 10th ed. New York: McGraw-Hill Companies, Inc., 2011.
Cita MLA (9th ed.)Feldman, Robert S. Understanding Psychology. 10th ed. McGraw-Hill Companies, Inc., 2011.
Atenció: Aquestes cites poden no estar 100% correctes.