Umbgrove, Johannes Herman Frederick,   1899-,  <br/><br/>
Structural history of the East Indies/ 
by J. H. F. Umbgrove. 
 - Cambridge:  Cambridge University Press,  1949. 
 - 62 pages :  illustrations, maps. ;   31 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Indonesia.