APA (7th ed.) Citation

Kellert, S. R. (1997). Macmillan encyclopedia of the environment. Macmillan Library Reference.

Chicago Style (17th ed.) Citation

Kellert, Stephen R. Macmillan Encyclopedia of the Environment. New York: Macmillan Library Reference, 1997.

MLA (9th ed.) Citation

Kellert, Stephen R. Macmillan Encyclopedia of the Environment. Macmillan Library Reference, 1997.