Style de citation APA (7e éd.)

Stebbins, G. L. (1971). Procesess of organic evolution (2d. ed.). s.e..

Style de citation Chicago (17e éd.)

Stebbins, George Ledyard. Procesess of Organic Evolution. 2d. ed. New Jersey: s.e., 1971.

Style de citation MLA (9e éd.)

Stebbins, George Ledyard. Procesess of Organic Evolution. 2d. ed. s.e., 1971.