APA (7th ed.) Citation

Leakey, R. E., & Lewin, R. (1992). Origins reconsidered: In search of what makes us human. Doubleday.

Chicago Style (17th ed.) Citation

Leakey, Richard E., and Roger Lewin. Origins Reconsidered: In Search of What Makes Us Human. New York: Doubleday, 1992.

MLA (9th ed.) Citation

Leakey, Richard E., and Roger Lewin. Origins Reconsidered: In Search of What Makes Us Human. Doubleday, 1992.