APA ציטוט

Kolstad, C. D., & Charles D. Kolstad. (2000). Environmental economics. New York: Oxford University Press.

Trích dẫn kiểu Chicago

Kolstad, Charles D., và Charles D. Kolstad. Environmental Economics. New York: Oxford University Press, 2000.

ציטוט MLA

Kolstad, Charles D., và Charles D. Kolstad. Environmental Economics. New York: Oxford University Press, 2000.