Bravmann, M. M. <br/><br/>
The spriritual background of early Islam :  studies in ancient Arab concepts / 
By M. M. Bravmann. 
 - Leiden :  E. J. Brill,  1972. 
 - vi, 338 p. ;  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Islam.<br/>Islam--Terminology.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arabian Peninsula--Social life and customs.