Cita APA (7th ed.)

Campbell, N. A. (2011). Biology (11th ed.). Pearson Education.

Cita Chicago (17th ed.)

Campbell, Neil A. Biology. 11th ed. Boston: Pearson Education, 2011.

Cita MLA (9th ed.)

Campbell, Neil A. Biology. 11th ed. Pearson Education, 2011.