Enger, E. D., Smith, B. F., & Bockarie, A. T. (2006). Environmental science: A study of interrelationships (10th ed.). McGraw-Hill Companies, Inc.
Citace podle Chicago (17th ed.)Enger, Eldon D., Bradley F. Smith, a Anne Todd Bockarie. Environmental Science: A Study of Interrelationships. 10th ed. New York: McGraw-Hill Companies, Inc, 2006.
Citace podle MLA (9th ed.)Enger, Eldon D., et al. Environmental Science: A Study of Interrelationships. 10th ed. McGraw-Hill Companies, Inc, 2006.
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