Cita APA

Campbell, N. A. (1990). Biology (2. edition.). Redwood City, California: The Benjamin/Cummings Publishing Company, Inc..

Citación estilo Chicago

Campbell, Neil A. Biology. 2. edition. Redwood City, California: The Benjamin/Cummings Publishing Company, Inc., 1990.

Cita MLA

Campbell, Neil A. Biology. 2. edition. Redwood City, California: The Benjamin/Cummings Publishing Company, Inc., 1990.