Παραπομπή APA

Enger, E. D. (2006). Environmental science: A study of interrelationships. Boston: McGrawHill Higher Education.

Παραπομπή Chicago Style

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston: McGrawHill Higher Education, 2006.

Παραπομπή MLA

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston: McGrawHill Higher Education, 2006.

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