APA (7th ed.) Citation

Stebbins, G. L. (1971). Processes of organic evolution (2nd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Stebbins, G. Ledyard. Processes of Organic Evolution. 2nd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1971.

MLA (9th ed.) Citation

Stebbins, G. Ledyard. Processes of Organic Evolution. 2nd ed. Prentice-Hall, 1971.