Deismireacht APA

Keller, E. A. (2011). Environmental geology (9th ed.). Prentice Hall.

Chicago Edition Citation

Keller, Edward A. Environmental Geology. 9th ed. Boston: Prentice Hall, 2011.

Deismireacht MLA

Keller, Edward A. Environmental Geology. 9th ed. Prentice Hall, 2011.

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