Mader S. Sylvia & Windelspecht Michael. (2012). HUMAN BIOLOGY (12th ed.). Mc Graw Hill.
Cita Chicago (17th ed.)Mader S. Sylvia i Windelspecht Michael. HUMAN BIOLOGY. 12th ed. New York: Mc Graw Hill, 2012.
Cita MLA (9th ed.)Mader S. Sylvia i Windelspecht Michael. HUMAN BIOLOGY. 12th ed. Mc Graw Hill, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.