APA (7th ed.) Zitazioa
ebrary, Inc, & Velkley, R. L. (2007). Freedom and the human person. Catholic University of America Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Richard L. Velkley. Freedom and the Human Person. Washington, D.C.: Catholic University of America Press, 2007.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Richard L. Velkley. Freedom and the Human Person. Catholic University of America Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.