Clays and clay minerals/ 
Clay Minerals Society 
 - Boulder, Colo. :  Boulder, Colo., 
 - Bimestral 
<br/><br/><label>ISSN: </label>0009-8604 
 = Clays and clay minerals 
 = Clays Clay Miner. 
<br/><br/><label>Subjects--Index Terms: </label>GEOLOGIA