Clays and clay minerals :  proceeding  / 
edited by Ada Swineford...[et al] 
 - New York :  Pergmon Press,  1959 
 - ix, 411p. ;  23 cm. 
<br/><br/><label>ISBN: </label> USD B8.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay<br/>Clay minerals<br/>Natural gas
<br/><br/><label>Dewey Class. No.: </label>553.6106173