Lua APA (7ú heag.)
Durning, A. T. (1992). How much is enough?: The consumer society and the future of the earth. Norton.
Lua i Stíl Chicago (17ú heag.)
Durning, Alan Thein. How Much Is Enough?: The Consumer Society and the Future of the Earth. New York: Norton, 1992.
Lua MLA (9ú heag.)
Durning, Alan Thein. How Much Is Enough?: The Consumer Society and the Future of the Earth. Norton, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.