Cita APA (7th ed.)

Campbell, N. A. (1987). Biology (2nd. ed.). The Benjamin/Cummings Publishing.

Cita Chicago (17th ed.)

Campbell, Neil A. Biology. 2nd. ed. California: The Benjamin/Cummings Publishing, 1987.

Cita MLA (9th ed.)

Campbell, Neil A. Biology. 2nd. ed. The Benjamin/Cummings Publishing, 1987.