Duchin, F., & Lange, G. (1994). The Future of the environment: Ecological economics and technological change. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Duchin, Faye, agus Glenn-Marie Lange. The Future of the Environment: Ecological Economics and Technological Change. New York: Oxford University Press, 1994.
Lua MLA (9ú heag.)Duchin, Faye, agus Glenn-Marie Lange. The Future of the Environment: Ecological Economics and Technological Change. Oxford University Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.