Cessario, R. (2001). Introduction to moral theology. Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)Cessario, Romanus. Introduction to Moral Theology. Washington, District of Columbia: Catholic University of America Press, 2001.
Lua MLA (9ú heag.)Cessario, Romanus. Introduction to Moral Theology. Catholic University of America Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.