APA (7th ed.) Citation

Hawkins, J. D. (1991). Gene structure and expression (Second edition.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Hawkins, John D. Gene Structure and Expression. Second edition. Cambridge ; New York: Cambridge University Press, 1991.

MLA (9th ed.) Citation

Hawkins, John D. Gene Structure and Expression. Second edition. Cambridge University Press, 1991.