Heller L Ed. <br/><br/>
Proceeding on international clay conference 

 -  1966 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>49704 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Clay<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H2331p1:N66, K6.2