Gaya APA

Windelspecht, M., Mader, S, S. (2013). Biology eleventh edition (Eleventh Edition). New York: The MC Graw Hill Companies.

Gaya MLA

Windelspecht, Michael., Mader, Sylvia, S.. "Biology eleventh edition". Eleventh Edition New York: The MC Graw Hill Companies, 2013. Text.