Sands, P. (2003). Principles of international environmental law (Second edition.). Cambridge University Press.
Chicago-referens (17:e uppl.)Sands, Philippe. Principles of International Environmental Law. Second edition. Cambridge ; New York: Cambridge University Press, 2003.
MLA-referens (8:e uppl.)Sands, Philippe. Principles of International Environmental Law. Second edition. Cambridge University Press, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.