APA (7 वां संस्करण) प्रशस्ति पत्र
Agnellus, o. R., & Deliyannis, D. M. (2004). The book of pontiffs of the church of Ravenna. Catholic University of America Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Agnellus, of Ravenna, और Deborah Mauskopf Deliyannis. The Book of Pontiffs of the Church of Ravenna. Washington, D.C.: Catholic University of America Press, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Agnellus, of Ravenna, और Deborah Mauskopf Deliyannis. The Book of Pontiffs of the Church of Ravenna. Catholic University of America Press, 2004.
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