Dyfyniad APA

Kolstad, C. D. (2011). Intermediate environmental economics (2nd ed.). Oxford University Press.

Dyfyniad Arddull Chicago

Kolstad, Charles D. Intermediate Environmental Economics. 2nd ed. New York ; Oxford: Oxford University Press, 2011.

Dyfyniad MLA

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

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