APA (7th ed.) Citation

Gardner, G. T., & Stern, P. C. (1996). Environmental problems and human behavior. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Gardner, Gerald T., and Paul C. Stern. Environmental Problems and Human Behavior. Needham Heights, MA: Allyn and Bacon, 1996.

MLA (9th ed.) Citation

Gardner, Gerald T., and Paul C. Stern. Environmental Problems and Human Behavior. Allyn and Bacon, 1996.