Cita APA (7th ed.)

(1968). Biological science: An inquiry into life (Segunda edición.). Harcourt, Brace and World.

Cita Chicago (17th ed.)

Biological Science: An Inquiry into Life. Segunda edición. New York, USA: Harcourt, Brace and World, 1968.

Cita MLA (9th ed.)

Biological Science: An Inquiry into Life. Segunda edición. Harcourt, Brace and World, 1968.