Airriess, Christopher Anderson. <br/><br/>
A port systems in a developing regional economy  evolution and response in North Sumatra, Indonesia /  [microform] : 
Christopher Anderson Airriess. 
 - Ann Arbor, Mich. :  University Microfilms International,  1990. 
 - 3 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph. D.) - University of Kentucky, 1989. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Harbors--Indonesia.