Cita APA (7a ed.)

Simpson, . G. S., & Beck, W. S. (1965). Life: An Introduction to biology (2nd edition.). Harcout, Brace & World.

Cita Chicago Style (17a ed.)

Simpson, G. S., y W. S. Beck. Life: An Introduction to Biology. 2nd edition. New York: Harcout, Brace & World, 1965.

Cita MLA (8a ed.)

Simpson, G. S., y W. S. Beck. Life: An Introduction to Biology. 2nd edition. Harcout, Brace & World, 1965.