Biddle, David White,  1942- <br/><br/>
The development of the bureaucracy of the Islamic Empire during the late Umayyad and early Abbasid period  [microform] / 
by David White Biddle 
 - Ann Arbor, Mich. :  University Microfilms International,  1972 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - University of Texas, 1972 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abbasids<br/>Omayyads
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Islamic countries--History<br/>Iraq