Conrad, J. M. (2011). Resource economics (2nd ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Conrad, Jon M. Resource Economics. 2nd ed. New York: Cambridge University Press, 2011.
Lua MLA (8ú heag.)Conrad, Jon M. Resource Economics. 2nd ed. Cambridge University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.