Παραπομπή APA

Kolstad, C. D. (2000). Enviornmental economics. 2000. Oxford University Press.

Παραπομπή Chicago Style

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

Παραπομπή MLA

Kolstad, Charles D. Enviornmental Economics. 2000. Oxford University Press, 2000.