एपीए उद्धरण

Bell, S. M. (2006). Evironmental law (6th ed.). Oxford Universtiy Press.

शिकागो स्टाइल उद्धरण

Bell, Stuart McGillivary. Evironmental Law. 6th ed. New York: Oxford Universtiy Press, 2006.

एमएलए उद्धरण

Bell, Stuart McGillivary. Evironmental Law. 6th ed. Oxford Universtiy Press, 2006.