Warren, Kenneth <br/><br/>
Mineral resources / 
Kenneth Warren 
 - Harmondsworth :  Penguin,  1973 
 - xvi, 272 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0715358510 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources<br/>Mineral industries