Cita APA

Enger, E. D., & Smith, B. F. (1995). Environmental science: A study of interrelationships (5. edition.). Dubuque, Iowa: WM. C. Brown.

Citación estilo Chicago

Enger, Eldon D., y Bradley F. Smith. Environmental Science: A Study of Interrelationships. 5. edition. Dubuque, Iowa: WM. C. Brown, 1995.

Cita MLA

Enger, Eldon D., y Bradley F. Smith. Environmental Science: A Study of Interrelationships. 5. edition. Dubuque, Iowa: WM. C. Brown, 1995.