APA (7th ed.) Citation

Davis, P. D. C., & Dent, A. A. (1968). Animals that changed the world. Crowell-Collier Press.

Chicago Style (17th ed.) Citation

Davis, Patrick David Channer, and Anthony Austen Dent. Animals That Changed the World. New York: Crowell-Collier Press, 1968.

MLA (9th ed.) Citation

Davis, Patrick David Channer, and Anthony Austen Dent. Animals That Changed the World. Crowell-Collier Press, 1968.