Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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