Cita APA (7a ed.)

Abercrombie, M., Hickman, C. J., & Abercrombie, M. L. J. (1983). The Penguin dictionary of biology (7th ed.). Penguin Books.

Cita Chicago Style (17a ed.)

Abercrombie, Michael, Clarence James Hickman, y Minnie Louie Johnson Abercrombie. The Penguin Dictionary of Biology. 7th ed. Harmondsworth: Penguin Books, 1983.

Cita MLA (9a ed.)

Abercrombie, Michael, et al. The Penguin Dictionary of Biology. 7th ed. Penguin Books, 1983.