Deismireacht APA

Bernard J Nebel. (1998). Environmental science: The way the world works. Upper Saddle River, New Jersey: Prentice-Hall.

Trích dẫn kiểu Chicago

Bernard J Nebel. Environmental Science: The Way the World Works. Upper Saddle River, New Jersey: Prentice-Hall, 1998.

Deismireacht MLA

Bernard J Nebel. Environmental Science: The Way the World Works. Upper Saddle River, New Jersey: Prentice-Hall, 1998.

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