APA

Gardner E. J., Simmons M. & Snustad D. P. (1991). Principles of genetics. New York: John Wiley & Sons.

Chicago

Gardner Eldon John, Simmons Michael and Snustad D Peter. 1991. Principles of genetics. New York: John Wiley & Sons.

Harvard

Gardner E. J., Simmons M. and Snustad D. P. (1991). Principles of genetics. New York: John Wiley & Sons.

MLA

Gardner Eldon John, Simmons Michael and Snustad D Peter. Principles of genetics. New York: John Wiley & Sons. 1991.