1162. Introduction à l'histoire de l'Orient Musulman. Paris, 1943; 2nd ed. (recast by Claude Cahen). Paris: Adrien Maisonneuve, 1961. [For an annotated bibliography of texts concerning the Ismailis and Fatimids: (1st ed.) pp. 136-139, (2nd ed.) pp. 150-154.]
1163. Introduction to the History of Muslim East. Based upon the second edition as recast by Claude Cahen. Berkeley: University of California Press, 1965. Rpt. Westport: Greenwood Press, 1982.