Cita APA (7a ed.)

Feldman, R. S. (2002). Understanding psychology (6th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Feldman, Robert S. Understanding Psychology. 6th ed. Boston [etc.]: McGraw-Hill, 2002.

Cita MLA (9a ed.)

Feldman, Robert S. Understanding Psychology. 6th ed. McGraw-Hill, 2002.