Castles, Lance,  1937- <br/><br/>
The Political life of a Sumatran residence  Tapanuli, 1915-1940 /  [microform] : 
by Lance Castles. 
 - Ann Arbor, Mich. :  University Microfilms International,  1973. 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/> Thesis (Ph.D.) - Yale University, 1972. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Tapanuli (Indonesia)--History.