APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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