Cita APA (7th ed.)

Grusec, J. E., & Walters, G. C. (1990). Foundations of psychology. Copp Clark Pitman.

Cita Chicago (17th ed.)

Grusec, Joan E., i Gary C. Walters. Foundations of Psychology. Toronto: Copp Clark Pitman, 1990.

Cita MLA (9th ed.)

Grusec, Joan E., i Gary C. Walters. Foundations of Psychology. Copp Clark Pitman, 1990.