APA استشهاد

Gardner, E. J. (1991). Principles of genetics/8th ed (8th ed.). Wiley.

استشهاد بنمط شيكاغو

Gardner, Eldon John. Principles of Genetics/8th Ed. 8th ed. New York: Wiley, 1991.

MLA استشهاد

Gardner, Eldon John. Principles of Genetics/8th Ed. 8th ed. Wiley, 1991.