Dyfyniad APA

Karpagam, M. (2006). Environmental economics: A text book. Sterling publishers.

Dyfyniad Arddull Chicago

Karpagam, M. Environmental Economics: A Text Book. New Delhi: Sterling publishers, 2006.

Dyfyniad MLA

Karpagam, M. Environmental Economics: A Text Book. Sterling publishers, 2006.

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