Cita APA (7th ed.)
Abercrombie, M., & Hickman, M. (1990). The new penguin dictionary of biology (8th ed.). Penguin books.
Cita Chicago (17th ed.)
Abercrombie, M., i M. Hickman. The New Penguin Dictionary of Biology. 8th ed. London: Penguin books, 1990.
Cita MLA (9th ed.)
Abercrombie, M., i M. Hickman. The New Penguin Dictionary of Biology. 8th ed. Penguin books, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.