Lewis, Bernard. <br/><br/>
The origins of Isma'ilism  a study of the historical background of the Fatimid Caliphate / 
by Bernard Lewis. 
 - Cambridge :    W. Heffer & Sons Ltd.,    1975. 
 - 114 p. ;    24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ismailites Fatimites.