Pisher R V <br/><br/>
Pyroclastic rocks 

 - Berlin  Springer-Verlag           1984 
 - xiv, 472p.  cm. 
<br/><br/><label>Standard No.: </label>49257 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Volcanic rock<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H211, M4