Institution of mining and geological society <br/><br/>
Proceeding on valcanic processes in one genesis 

 -  1977 
 - vi,188p.  cm. 
<br/><br/><label>Standard No.: </label>50252 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>Hz:2p1,N76, L7