APA (7th ed.) Citation

Keeton, W. T. (1973). Elements of biological science (2d ed.). Norton National Book Store.

Chicago Style (17th ed.) Citation

Keeton, William T. Elements of Biological Science. 2d ed. New York, Manila: Norton National Book Store, 1973.

MLA (9th ed.) Citation

Keeton, William T. Elements of Biological Science. 2d ed. Norton National Book Store, 1973.