APA استشهاد

Thornton, J. B. (2004). Enviornmental law (2nd ed.). Sweet and Maxwell.

استشهاد بنمط شيكاغو

Thornton, Justine Beckwith. Enviornmental Law. 2nd ed. London: Sweet and Maxwell, 2004.

MLA استشهاد

Thornton, Justine Beckwith. Enviornmental Law. 2nd ed. Sweet and Maxwell, 2004.