APA (7th ed.) Citation

Peck, D. F., & Whitlow, D. (1975). Approaches to personality theory. Methuen.

Chicago Style (17th ed.) Citation

Peck, David F., and David Whitlow. Approaches to Personality Theory. London: Methuen, 1975.

MLA (9th ed.) Citation

Peck, David F., and David Whitlow. Approaches to Personality Theory. Methuen, 1975.