APA (7th ed.) Citation

Stevenson, L. H., & Wyman, B. C. (1991). The Facts On File dictionary of environmental science. Facts On File.

Chicago Style (17th ed.) Citation

Stevenson, L. Harold, and Bruce C. Wyman. The Facts On File Dictionary of Environmental Science. New York: Facts On File, 1991.

MLA (9th ed.) Citation

Stevenson, L. Harold, and Bruce C. Wyman. The Facts On File Dictionary of Environmental Science. Facts On File, 1991.