Dvornik, Francis. Byzantine Missions Among the Slavs : Ss. Constantine-Cyril and Methodius (Rutgers Byzantine Series). 1978. ISBN: 0813506131. [9986]
Purple cloth, 9 1/2 x 6 1/4 inches, no dj. xviii., [2], 484 pp., tight. Light pencil underlining & marginalia in some chapters.
First published in 1970, this printing is from 1978.
Francis Dvornik (1893-1975), born in Moravia; Roman Catholic priest and academic. He was considered to be one of the leading experts on Slavic and Byzantine history.