APA (7th ed.) Citation

Peterson, C. (1997). Psychology: A biopsychosocial approach (2nd ed.). Longman.

Chicago Style (17th ed.) Citation

Peterson, Christopher. Psychology: A Biopsychosocial Approach. 2nd ed. New York: Longman, 1997.

MLA (9th ed.) Citation

Peterson, Christopher. Psychology: A Biopsychosocial Approach. 2nd ed. Longman, 1997.