APA استشهاد

Bell,Stuart, & Donald McGillivray. (2006). Environmental law (ed.6.). Oxford University Press.

استشهاد بنمط شيكاغو

Bell,Stuart, و Donald McGillivray. Environmental Law. ed.6. New York: Oxford University Press, 2006.

MLA استشهاد

Bell,Stuart, و Donald McGillivray. Environmental Law. ed.6. Oxford University Press, 2006.