Cita APA (7a ed.)

Gale, A., & Chapman, A. J. (1989). Psychology and social problems: : an introduction to applied psychology. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Gale, Anthony, y Antony J. Chapman. Psychology and Social Problems: : An Introduction to Applied Psychology. Chichester [etc.]: John Wiley & Sons, 1989.

Cita MLA (9a ed.)

Gale, Anthony, y Antony J. Chapman. Psychology and Social Problems: : An Introduction to Applied Psychology. John Wiley & Sons, 1989.