APA (7th ed.) Citation

Enger, E. D., & Smith, B. F. (2000). Environmental science: A study of interrelationships (7. ed.). Mac Graw-Hill.

Chicago Style (17th ed.) Citation

Enger, Eldon D., and Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 7. ed. Boston [u.a.]: Mac Graw-Hill, 2000.

MLA (9th ed.) Citation

Enger, Eldon D., and Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 7. ed. Mac Graw-Hill, 2000.