Gaya APA

MADER, S, S., WINDELSPECHT, M. (2015). Essentials of biology (4th ed.). Boston: Mc Graw Hill.

Gaya MLA

MADER, Sylvia, S.., WINDELSPECHT, Michael. "Essentials of biology". 4th ed. Boston: Mc Graw Hill, 2015. Buku.