O'Keefe, M. D. (1987). Known from the things that are: Fundamental theory of the moral life. Center for Thomistic Studies.
Chicago-Zitierstil (17. Ausg.)O'Keefe, Martin D. Known from the Things That Are: Fundamental Theory of the Moral Life. Houston, Tex: Center for Thomistic Studies, 1987.
MLA-Zitierstil (9. Ausg.)O'Keefe, Martin D. Known from the Things That Are: Fundamental Theory of the Moral Life. Center for Thomistic Studies, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.