Backer, C. A. <br/><br/>
The Problem of Krakatao as seen by a botanist  [microform] / 
C. A. Becker. 
 - [Indonesia :  s.n.,  n.d.] 
 - 4 microfiches :  positive ;  11 X 15 cm. 
<br/><br/> Bahan IDC (Inter Documentation Company).  Modern Indonesia Project : Monographs.  MFC 2395