Cita APA (7th ed.)

Abercrombie, M., Hickman, C. P., & Johnsom, M. L. (1951). A dictionary of biology. Penguin.

Cita Chicago (17th ed.)

Abercrombie, M., Cleveland P. Hickman, i M. L. Johnsom. A Dictionary of Biology. Londres: Penguin, 1951.

Cita MLA (9th ed.)

Abercrombie, M., et al. A Dictionary of Biology. Penguin, 1951.