Cita APA (7th ed.)

Wolfe, S. L. (1983). Biology: The foundations (2nd ed.). Wadsworth.

Cita Chicago (17th ed.)

Wolfe, Stephen L. Biology: The Foundations. 2nd ed. Belmont, Calif.: Wadsworth, 1983.

Cita MLA (9th ed.)

Wolfe, Stephen L. Biology: The Foundations. 2nd ed. Wadsworth, 1983.