APA aipamena

Conrad, J. M. (2011). Resource economics (2nd ed.). Cambridge University Press.

Chicago Style aipamena

Conrad, Jon M. Resource Economics. 2nd ed. New York: Cambridge University Press, 2011.

MLA aipamena

Conrad, Jon M. Resource Economics. 2nd ed. Cambridge University Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.