Lua APA (7ú heag.)

Kolstad, C. D. (2011). Intermediate Environmental Economics (2nd.). Oxford University Press.

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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