Lewis, Bernard,  1916-2018. <br/><br/>
The origins of Ismāʿīlism;  a study of the historical background of the Fāṭimid caliphate / 
by Bernard Lewis 
 - Cambridge, [Eng.] :  W. Heffer,  1940 
 - vi, 114 p. :  Ill. , folded genealogical table;  22 cm 
<br/><br/> "A revised version of a thesis accepted for the degree of Ph. D. in the University of London."--p. vi 
<br/><br/>Bibliography: p. 101-108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ismailis --History --Pre-Fatimid period.     <br/>Fatimids. 
<br/><br/><label>Dewey Class. No.: </label>297.822  / LEO 1940