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 (17. basım) AtıfCatholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura ve 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 (8th ed.) AtıfCatholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura ve United States Catholic Conference. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. United States Catholic Conference, 1978.