O'Brien, I. (1938). The Father's shadow. The rosary. Fragments. Doors. St. Anthony's Guild, Franciscan Monastery.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रO'Brien, Isidore. The Father's Shadow. The Rosary. Fragments. Doors. Paterson, NJ: St. Anthony's Guild, Franciscan Monastery, 1938.
एमएलए (8वां संस्करण) प्रशस्ति पत्रO'Brien, Isidore. The Father's Shadow. The Rosary. Fragments. Doors. St. Anthony's Guild, Franciscan Monastery, 1938.
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