Letters [of] Nicholas I, Patriarch of Constantinople
NicholasIPatriarch of Constantinople852-925.
Washington Dumbarton Oaks Center for Byzantine Studies, Trustees for Harvard University Locust Valley, N.Y. distributed by J. J. Augustin
1973
English and Greek on opposite pages
Includes indexes
Bibliography: p. [524]
Nikolaos I Mystikos Saint, Patriarch of Constantinople 852-925.