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.
Atenció: Aquestes cites poden no estar 100% correctes.