APA (7th ed.) Citation

Gardner, E. J. (1972). Principles of genetics (4th ed.). Wiley.

Chicago Style (17th ed.) Citation

Gardner, Eldon J. Principles of Genetics. 4th ed. New York: Wiley, 1972.

MLA (9th ed.) Citation

Gardner, Eldon J. Principles of Genetics. 4th ed. Wiley, 1972.