Kolstand, C. D. (2010). Intermediate Environmental Economics. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Kolstand, Charles D. Intermediate Environmental Economics. New Delhi: Oxford University Press, 2010.
Lua MLA (9ú heag.)Kolstand, Charles D. Intermediate Environmental Economics. Oxford University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.