Powell, J. J. (1977). Respect life! National Conference of Catholic Bishops, Committee for Pro-Life Activities.
Chicago-referens (17:e uppl.)Powell, John Joseph. Respect Life! Washington, D.C.: National Conference of Catholic Bishops, Committee for Pro-Life Activities, 1977.
MLA-referens (8:e uppl.)Powell, John Joseph. Respect Life! National Conference of Catholic Bishops, Committee for Pro-Life Activities, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.