Letters
Nicholas I Patriarch of Constantinople.
Letters /
Nicholas I, Patriarch of Constantinople ; Greek text and English translation by R.J.H. Jenkins, L.G. Westerink
. - Washington : Dumbarton Oaks, Center for Byzantine Studies, Trustees for Harvard University, 1973
. - XL, 631 p. 24 cm.
- Corpus fontium historiae Byzantinae v. 6 .
0-88402-039-8
0-88402-039-8
