Surveillance and prediction of volcanic activity  

 - Paris  UNESCO            1972 
 - 166p.  cm. 
 - Earth Sciences .8 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H411, L2