APA Edition Citation

Enger, E. D. a. S., Enger, E. D., & Smith, B. F. (2013). Environmental science: A study of interrelationships (13th.). McGraw-Hill.

Chicago Edition Citation

Enger, Eldon D and Smith, Eldon D. Enger, and Bradley F. Smith. Environmental Science: A Study of Interrelationships. 13th. Dubuque: McGraw-Hill, 2013.

MLA Edition Citation

Enger, Eldon D and Smith, et al. Environmental Science: A Study of Interrelationships. 13th. McGraw-Hill, 2013.