APA (7th ed.) Citation

Dillon, L. S., & Dillon, E. S. (1965). Principles of animal biology. Macmillan.

Chicago Style (17th ed.) Citation

Dillon, Lawrence S., and Elizabeth S. Dillon. Principles of Animal Biology. New York: Macmillan, 1965.

MLA (9th ed.) Citation

Dillon, Lawrence S., and Elizabeth S. Dillon. Principles of Animal Biology. Macmillan, 1965.