The surveillance and prediction of volcanic activity :  a review of methods and techniques /  
Unesco. 
 - Paris:   Unesco,   1971.  
 - 166 p. :  ill., maps, tables ;  27 cm. 
 -  8 .
<br/><br/>Includes bibliographical references (p. 12-13, 45, 72-74, 101, 123-124, 130, 136-137, 143-144, 166). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanic activity prediction
<br/><br/><label>Dewey Class. No.: </label>551.21