APA (7th ed.) Citation

Gardner, E. J., Simmons, M. J., & Snustad, D. P. (1991). Principles of genetics (8th ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Gardner, Eldon John, Michael J. Simmons, and D. Peter Snustad. Principles of Genetics. 8th ed. New York: John Wiley & Sons, 1991.

MLA (9th ed.) Citation

Gardner, Eldon John, et al. Principles of Genetics. 8th ed. John Wiley & Sons, 1991.