Sagoff, M. (1988). The economy of the earth: Philosophy, law, and the environment. Cambridge University Press.
Chicago-referens (17:e uppl.)Sagoff, Mark. The Economy of the Earth: Philosophy, Law, and the Environment. Cambridge: Cambridge University Press, 1988.
MLA-referens (9:e uppl.)Sagoff, Mark. The Economy of the Earth: Philosophy, Law, and the Environment. Cambridge University Press, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.