Gaya APA

Bowen, S, J, B, W, R. (1972). Exercises in Organic & Biological Chemistry (--). New York: Macmillan Publishing Company.

Gaya MLA

Bowen, Stuart, J., Baum,, William, R.. "Exercises in Organic & Biological Chemistry". -- New York: Macmillan Publishing Company, 1972. Text.