Gaya APA

Fried, G, H., Hademenos, G, J. (2013). Schaum's outline of theory and problems of biology (4th ed). New York: McGraw-Hill.

Gaya MLA

Fried, George, H.., Hademenos, George, J.. "Schaum's outline of theory and problems of biology". 4th ed New York: McGraw-Hill, 2013. Text.