APA (7th ed.) Citation

Enger, E. D. (1989). Environmental science: A study of interrelationships. Wm. C. Brown Publishers.

Chicago Style (17th ed.) Citation

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Dubuque, IA: Wm. C. Brown Publishers, 1989.

MLA (9th ed.) Citation

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Wm. C. Brown Publishers, 1989.