Cita APA (7a ed.)

Porter, J. (2005). Nature as reason: A thomistic theory of the natural law. William B. Eerdmans.

Cita Chicago Style (17a ed.)

Porter, Jean. Nature as Reason: A Thomistic Theory of the Natural Law. Grand Rapids (Michigan): William B. Eerdmans, 2005.

Cita MLA (9a ed.)

Porter, Jean. Nature as Reason: A Thomistic Theory of the Natural Law. William B. Eerdmans, 2005.