Agnellus, o. R., & Deliyannis, D. M. (2004). The book of pontiffs of the church of Ravenna. Catholic University of America Press.
Chicago-čujuhus (17. p.)Agnellus, of Ravenna, juo Deborah Mauskopf Deliyannis. The Book of Pontiffs of the Church of Ravenna. Washington, D.C.: Catholic University of America Press, 2004.
MLA-čujuhus (9. p.)Agnellus, of Ravenna, juo Deborah Mauskopf Deliyannis. The Book of Pontiffs of the Church of Ravenna. Catholic University of America Press, 2004.
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