Sagoff, M. (2008). The Economy of the earth Philosophy, Law and the environment. Cambridge University Press.
Chicago-viite (17. p.)Sagoff, Mark. The Economy of the Earth Philosophy, Law and the Environment. Cambridge University Press, 2008.
MLA-viite (8. p.)Sagoff, Mark. The Economy of the Earth Philosophy, Law and the Environment. Cambridge University Press, 2008.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.