APA (7th ed.) Citation

Whitfield, P., & Ayensu, E. S. (1984). Macmillan illustrated animal encyclopedia. Macmillan.

Chicago Style (17th ed.) Citation

Whitfield, Philip, and Edward S. Ayensu. Macmillan Illustrated Animal Encyclopedia. New York: Macmillan, 1984.

MLA (9th ed.) Citation

Whitfield, Philip, and Edward S. Ayensu. Macmillan Illustrated Animal Encyclopedia. Macmillan, 1984.