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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura और 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCatholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura और United States Catholic Conference. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. United States Catholic Conference, 1978.