Catholic Church. National Conference of Catholic Bishops, United States Catholic Conference. Division of Religious Education - CCD, Marthaler, B. L., & Brooks, A. V. (1974). A study aid for basic teachings for Catholic religious education. Publications Office, U.S. Catholic Conference.
Lua i Stíl Chicago (17ú heag.)Catholic Church. National Conference of Catholic Bishops, United States Catholic Conference. Division of Religious Education - CCD, Berard L. Marthaler, agus Ann Virginia Brooks. A Study Aid for Basic Teachings for Catholic Religious Education. Washington, DC: Publications Office, U.S. Catholic Conference, 1974.
Lua MLA (8ú heag.)Catholic Church. National Conference of Catholic Bishops, et al. A Study Aid for Basic Teachings for Catholic Religious Education. Publications Office, U.S. Catholic Conference, 1974.