APA (7th ed.) Citation

Boule, M., Vallois, H. V., & Bullock, M. (1957). Fossil men. Dryden Press.

Chicago Style (17th ed.) Citation

Boule, Marcellin, Henri V. Vallois, and Michael Bullock. Fossil Men. New York: Dryden Press, 1957.

MLA (9th ed.) Citation

Boule, Marcellin, et al. Fossil Men. Dryden Press, 1957.