Deismireacht APA

Cunningham, W. P. (2005). Environmental Science: A Global Concern with OLC (Hardcover). New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Cunningham, William P. Environmental Science: A Global Concern With OLC (Hardcover). New York: McGraw-Hill, 2005.

Deismireacht MLA

Cunningham, William P. Environmental Science: A Global Concern With OLC (Hardcover). New York: McGraw-Hill, 2005.

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