APA (7th ed.) Citation

White, W., & Little, F. J. (1972). North American reference encyclopedia of ecology and pollution: W. White, Jr. and Frank J. Little, Jr. North American Pub.

Chicago Style (17th ed.) Citation

White, William, and Frank J. Little. North American Reference Encyclopedia of Ecology and Pollution: W. White, Jr. and Frank J. Little, Jr. Philadelphia: North American Pub, 1972.

MLA (9th ed.) Citation

White, William, and Frank J. Little. North American Reference Encyclopedia of Ecology and Pollution: W. White, Jr. and Frank J. Little, Jr. North American Pub, 1972.