GRIM, Ralph E. <br/><br/>
Clay Mineralogy / 
Ralph E.Grim 
 - 2nd ed. 
 - New York  McGraw Hill Book Company  1968 
 - 596 p. 
<br/><br/> Includes appendix and index 
<br/><br/><label>Dewey Class. No.: </label>622.361  / GRI