Verstappen, Herman Theodoor <br/><br/>
Dasar fisiografis dari transmigrasi di Sumatera Selatan  The physiographic basis of pioneer /  [microform] : 
Herman Theodoor Verstappen 
 - [Djakarta :  s.n.,  n.d.] 
 - 2 microfiches :  positive ;  11 X 15 cm. 
<br/><br/> Bahan IDC (Inter Documentation Company)  Modern Indonesia Project : Monographs