Cita APA (7th ed.)

Campbell, N. A. (2008). Biology (International ed., Eight edition.). Pearson/Benjamin Cummings.

Cita Chicago (17th ed.)

Campbell, Neil A. Biology. International ed., Eight edition. San Francisco ; London: Pearson/Benjamin Cummings, 2008.

Cita MLA (8th ed.)

Campbell, Neil A. Biology. International ed., Eight edition. Pearson/Benjamin Cummings, 2008.