Husain, S. Athar. <br/><br/>
The glorious caliphate / 
By S. Athar Husain. 
 - 1st ed. 
 - Lucknow :  Academy of Islamic Research and Publications,  1974. 
 - 266 p. :  ill. ;  23 cm. 
 - Series Academy of Islamic Research and Publications  no.73. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Islamic Empire--History--622-661