Citace podle APA

Enger, E. D., & Smith, B. F. (2006). Environmental science: A study of interrelationships (10th ed.). McGraw Hill higher education.

Styl Chicago

Enger, Eldon D., a Bradley F. Smith. Environmental Science: A Study of Interrelationships. 10th ed. Boston: McGraw Hill higher education, 2006.

Citace podle MLA

Enger, Eldon D., a Bradley F. Smith. Environmental Science: A Study of Interrelationships. 10th ed. McGraw Hill higher education, 2006.

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