Zernov, Nicolas. Eastern Christendom; a study of the origin and development of the Eastern Orthodox Church. - [1st. American ed.] - New York, Putnam [1961] - 326 p. illus. 24 cm. - The Putnam history of religion . Includes bibliography. LCCN: 61005715 Subjects--Corporate Names: Orthodox Eastern Church. LC Class. No.: 281.909 / Z58E Dewey Class. No.: 281.9 / Z58E