Cita APA (7th ed.)
ebrary, Inc, & Velkley, R. L. (2007). Freedom and the human person. Catholic University of America Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Richard L. Velkley. Freedom and the Human Person. Washington, D.C.: Catholic University of America Press, 2007.
Cita MLA (9th ed.)
ebrary, Inc, i Richard L. Velkley. Freedom and the Human Person. Catholic University of America Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.