Cusumano, V. (1974). In the service of the Church: The servant of God, George Matulaitis-Matulewicz : biographical sketch and spiritual diary. Lith. Catholic Press.
Chicago-referens (17:e uppl.)Cusumano, Vincenzo. In the Service of the Church: The Servant of God, George Matulaitis-Matulewicz : Biographical Sketch and Spiritual Diary. Chicago: Lith. Catholic Press, 1974.
MLA-referens (8:e uppl.)Cusumano, Vincenzo. In the Service of the Church: The Servant of God, George Matulaitis-Matulewicz : Biographical Sketch and Spiritual Diary. Lith. Catholic Press, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.