APA (7th ed.) Citation

Gardner, E. J. (1964). Principles of genetics (2nd ed.). John Wiley and Sons.

Chicago Style (17th ed.) Citation

Gardner, Eldon John. Principles of Genetics. 2nd ed. London: John Wiley and Sons, 1964.

MLA (9th ed.) Citation

Gardner, Eldon John. Principles of Genetics. 2nd ed. John Wiley and Sons, 1964.