Cannon, William Ragsdale, 1916-1997 History of christianity in the middle ages : from the fall of Rome to the fall of Constantinople / William Ragsdale Cannon - New York ; Nashville : Abingdon Press, c1960. - 352 p. : maps. ; 23 cm. Subjects--Topical Terms: Iglesia - Historia - Edad Media - 600-1500 Dewey Class. No.: 270.2 / C226