Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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