Gaya APA

Posner, R, A, P, S, L, I, L, R, A. (1999). The Problematics of Moral and Legal Theory . : Belknap Press.

Gaya MLA

Posner, Richard, A., Posner;, Senior, Lecturer, In, Law, Richard, A. "The Problematics of Moral and Legal Theory". : Belknap Press, 1999. Text.