APA

Gardner E. J., . (1960). Principles of genetics. New York: John Wiley & Sons.

Chicago

Gardner Eldon John, . 1960. Principles of genetics. New York: John Wiley & Sons.

Harvard

Gardner E. J., . (1960). Principles of genetics. New York: John Wiley & Sons.

MLA

Gardner Eldon John, . Principles of genetics. New York: John Wiley & Sons. 1960.