Gaya APA

FRIED, G, H., HADEMENOS, G, J. (2009). Schaum's outlines of biology, second edition (second ed.). New York: Sams.

Gaya MLA

FRIED, George, H.., HADEMENOS, George, J.. "Schaum's outlines of biology, second edition". second ed. New York: Sams, 2009. Text.