APA (7th ed.) Citation

Leff, S., & Leff, V. (1965). The search for sanity. Pergamon Press.

Chicago Style (17th ed.) Citation

Leff, S., and V. Leff. The Search for Sanity. Oxford ; New York: Pergamon Press, 1965.

MLA (9th ed.) Citation

Leff, S., and V. Leff. The Search for Sanity. Pergamon Press, 1965.