Worrall, W.E.  <br/><br/>
Clays: their nature, origin and general properties  (Book) 

 - London  Maclaren  1968 
 - 128p.  23 cm. 
<br/><br/><label>ISBN: </label>853340218 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay
<br/><br/><label>Universal Decimal Class. No.: </label>553.61 WOR  / 7322