APA (7th ed.) Citation

Snyder, L. H. (1940). The principles of heredity (2nd ed.). D.C. Heath.

Chicago Style (17th ed.) Citation

Snyder, Laurence H. The Principles of Heredity. 2nd ed. Boston: D.C. Heath, 1940.

MLA (8th ed.) Citation

Snyder, Laurence H. The Principles of Heredity. 2nd ed. D.C. Heath, 1940.