Egbule Onwuli, C. (1985). Catechetical education of the youth in the new Code of Canon Law. Pontificia Universitas Urbaniana, Facultas Juris Canonici.
Lua i Stíl Chicago (17ú heag.)Egbule Onwuli, Cyprian. Catechetical Education of the Youth in the New Code of Canon Law. Romae: Pontificia Universitas Urbaniana, Facultas Juris Canonici, 1985.
Lua MLA (8ú heag.)Egbule Onwuli, Cyprian. Catechetical Education of the Youth in the New Code of Canon Law. Pontificia Universitas Urbaniana, Facultas Juris Canonici, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.