Clays and clays minerals. 

 - Colorado :    The Clay Minerals Society,    1969- 
 - v. :    ill. ;    27 cm. 
 - Bimonthly 
 - Annual,    1965-66 
<br/><br/><label>ISSN: </label>0009-8604 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Clay -- Periodicals.<br/> Clay minerals -- Periodicals.
<br/><br/><label>Dewey Class. No.: </label>553.61