APA citiranje

Enger, E. D. (2000). Environmental science: A study of interrelationships. Boston, Mass: McGraw-Hill.

Trích dẫn kiểu Chicago

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Mass: McGraw-Hill, 2000.

MLA citiranje

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Mass: McGraw-Hill, 2000.

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