APA (7th ed.) Citation

Steger, W., & Bowermaster, J. (1990). Saving the earth: A citizen's guide to environmental action. Knopf.

Chicago Style (17th ed.) Citation

Steger, Will, and Jon Bowermaster. Saving the Earth: A Citizen's Guide to Environmental Action. New York: Knopf, 1990.

MLA (9th ed.) Citation

Steger, Will, and Jon Bowermaster. Saving the Earth: A Citizen's Guide to Environmental Action. Knopf, 1990.