Cita APA (7th ed.)

Abercrombie, M., Hickman, C. J., & Johnson, M. L. (1980). The Penguin dictionary of biology (7th ed.). Penguin Books.

Cita Chicago (17th ed.)

Abercrombie, M., C. J. Hickman, i M. L. Johnson. The Penguin Dictionary of Biology. 7th ed. London: Penguin Books, 1980.

Cita MLA (9th ed.)

Abercrombie, M., et al. The Penguin Dictionary of Biology. 7th ed. Penguin Books, 1980.