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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catholic Church. National Conference of Catholic Bishops. Committee for Pro-Life Activities و 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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catholic Church. National Conference of Catholic Bishops. Committee for Pro-Life Activities و United States Catholic Conference. A Human Life Amendment: The Time Is Now. National Conference of Catholic Bishops' Committee for Pro-Life Activities, 1981.