Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. (1978). Letter to episcopal conferences on the Church and people on the move: May 4, 1978. United States Catholic Conference.
Chicago-viite (17. p.)Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. Washington: United States Catholic Conference, 1978.
MLA-viite (8. p.)Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. United States Catholic Conference, 1978.
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