Enger, E. D., & Smith, B. F. (2004). Environmental science: A study of interrelationships (9th ed.). Mc Graw hill.
Chicago-стиль цитированияEnger, Eldon D., and Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 9th ed. Boston: Mc Graw hill, 2004.
MLA-цитированиеEnger, Eldon D., and Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 9th ed. Mc Graw hill, 2004.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.