Cita APA (7a ed.)

Feldman, R. S. (1993). Understanding psychology (3rd ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Feldman, Robert S. Understanding Psychology. 3rd ed. New York [etc.]: McGraw-Hill, 1993.

Cita MLA (9a ed.)

Feldman, Robert S. Understanding Psychology. 3rd ed. McGraw-Hill, 1993.