Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura & United States Catholic Conference. (1978). Letter to episcopal conferences on the Church and people on the move: May 4, 1978. United States Catholic Conference.
Chicago Style (17th ed.) CitationCatholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura and United States Catholic Conference. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. Washington: United States Catholic Conference, 1978.
MLA引文Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura and United States Catholic Conference. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. United States Catholic Conference, 1978.