APA (7th ed.) Citation

Abercrombie, M., Hickman, C. J., & Abercrombie, M. L. J. (1962). A dictionary of biology. Penguin books.

Chicago Style (17th ed.) Citation

Abercrombie, M., C. J. Hickman, and M. L. J. Abercrombie. A Dictionary of Biology. Baltimore: Penguin books, 1962.

MLA (8th ed.) Citation

Abercrombie, M., et al. A Dictionary of Biology. Penguin books, 1962.