APA (7th ed.) Citation

Claridge, G. c. 2. J. (1973). Personality differences and biological variations: A study of twins ([1st ed.].). Pergamon Press.

Chicago Style (17th ed.) Citation

Claridge, Gordon ca. 20. Jh. Personality Differences and Biological Variations: A Study of Twins. [1st ed.]. Oxford: Pergamon Press, 1973.

MLA (9th ed.) Citation

Claridge, Gordon ca. 20. Jh. Personality Differences and Biological Variations: A Study of Twins. [1st ed.]. Pergamon Press, 1973.