Clays and clays minerals :  proceedings / 
edited by W.F. Bradley...[et.al] 
 - London :  Pergame Press,  1963 
 - ix, 368p. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> PND 122.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay--Congresses<br/>Clay minerals--Congresses.<br/>Natural gas
<br/><br/><label>Dewey Class. No.: </label>553.6106173