MLA

Watson, James. D, and Keith Robert. Molecular Biology of the Gene. 2nd ed. New York: Benjamin, 1965.

APA

Watson, J. D, & Robert, K. (1965). Molecular biology of the gene. 2nd ed. New York: Benjamin.

Chicago

Watson, James. D, and Keith Robert. Molecular Biology of the Gene. 2nd ed. New York: Benjamin, 1965.