Mader, S. S. (1996). Biology (5th ed.). Wm. C. Brown Publishers.
Cita Chicago (17th ed.)Mader, Sylvia S. Biology. 5th ed. Dubuque, IA: Wm. C. Brown Publishers, 1996.
Cita MLA (8th ed.)Mader, Sylvia S. Biology. 5th ed. Wm. C. Brown Publishers, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.