Dyfyniad APA

Charles D Kolstand. (2011). Intermediate Environmental Economics (2ed.). Oxford University Press.

Dyfyniad Arddull Chicago

Charles D Kolstand. Intermediate Environmental Economics. 2ed. New Delhi: Oxford University Press, 2011.

Dyfyniad MLA

Charles D Kolstand. Intermediate Environmental Economics. 2ed. Oxford University Press, 2011.

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