Deismireacht APA

Perman, R. (2011). Natural resource and environmental economics. Harlow, Essex: Pearson Addison Wesley.

Trích dẫn kiểu Chicago

Perman, Roger. Natural Resource and Environmental Economics. Harlow, Essex: Pearson Addison Wesley, 2011.

Deismireacht MLA

Perman, Roger. Natural Resource and Environmental Economics. Harlow, Essex: Pearson Addison Wesley, 2011.

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