Westerveld, Jan 1905-  <br/><br/>
Radioactivity and chemistry of some Indonesian eruptive rocks / 
by J. Westerveld. 
 - Amsterdam:  North-Holland,  1954. 
 - 52 p. :   ill. ;   25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology--Indonesia.<br/>Rocks, Igneous.<br/>Radioactivity.<br/>Geochemistry.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Indonesia--Petrology.