Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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