Kaarsberg, Helge. <br/><br/>
Mein Sumatrabuch / 
Helge Kaarsberg. 
 - Berlin :  Verlag August Scherl G. M. B. H.,  1925. 
 - 139 p. :  ill. ;  26 cm. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Sumatra (Indonesia)--History.