APA (7th ed.) Citation

Villee, C. A., & Dethier, V. G. (1976). Biological principles and processes (2nd ed.). Saunders.

Chicago Style (17th ed.) Citation

Villee, Claude Alvin, and Vincent Gaston Dethier. Biological Principles and Processes. 2nd ed. Philadelphia: Saunders, 1976.

MLA (9th ed.) Citation

Villee, Claude Alvin, and Vincent Gaston Dethier. Biological Principles and Processes. 2nd ed. Saunders, 1976.