%0 Book %E Montgomery, James A. %E Jahballahā, III., Katholikos %I Octagon Books %D 1927 %C New York %G English %B Records of civilization %T The history of Yaballaha III, Nestorian patriarch, and of his vicar, Bar Sauma, Mongol ambassador to the Frankish courts at the end of the thirteenth century %J Records of civilization %7 Reprint [der Ausg.] 1927