O'Connell, P. F. (1972). The ecclesiology of St. Nicephorus I: (758 - 828) ; Patriarch of Constantinopel ; Pentarchy and primacy. Pont. Inst. Studiorum Orientalium.
Chicago Style (17th ed.) CitationO'Connell, Patrick F. The Ecclesiology of St. Nicephorus I: (758 - 828) ; Patriarch of Constantinopel ; Pentarchy and Primacy. Roma: Pont. Inst. Studiorum Orientalium, 1972.
MLA (9th ed.) CitationO'Connell, Patrick F. The Ecclesiology of St. Nicephorus I: (758 - 828) ; Patriarch of Constantinopel ; Pentarchy and Primacy. Pont. Inst. Studiorum Orientalium, 1972.
Warning: These citations may not always be 100% accurate.