Catholic Church. National Conference of Catholic Bishops. Committee for Pro-Life Activities & United States Catholic Conference. (1981). A Human Life Amendment: The time is now. National Conference of Catholic Bishops' Committee for Pro-Life Activities.
Παραπομπή σε μορφή Chicago (17η εκδ.)Catholic Church. National Conference of Catholic Bishops. Committee for Pro-Life Activities και United States Catholic Conference. A Human Life Amendment: The Time Is Now. Washington, D.C.: National Conference of Catholic Bishops' Committee for Pro-Life Activities, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Catholic Church. National Conference of Catholic Bishops. Committee for Pro-Life Activities και United States Catholic Conference. A Human Life Amendment: The Time Is Now. National Conference of Catholic Bishops' Committee for Pro-Life Activities, 1981.