Clays and clay minerals :  Proceedings of the thirteenth national conference on Clays and clay minerals : Oct., 5-8,1964 / 
Conducted by The Clay Minerals Society ; Editors: W.F. Bradley, S.W.Bailey. 
 - Oxford :  Pergamon Press,  1966. 
 - ix,451 p.,  [16]l. ill. : ill. 
 - International Series in Earth Sciences  Vol. 25 .
<br/><br/>Includes bibliogr. references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay research--Congresses