APA استشهاد

Smith, J. C. (1976). Legal obligation. The Athlone Press.

استشهاد بنمط شيكاغو

Smith, J. C. Legal Obligation. University of London: The Athlone Press, 1976.

MLA استشهاد

Smith, J. C. Legal Obligation. The Athlone Press, 1976.