Science: The earth's physical resources, mineral deposits 

 - Milton Keynes  Open University  1976 
 - 140p. 
<br/><br/><label>ISBN: </label> UKP 3.95 
<br/><br/><label>Source: </label> UKP 3.95 
<br/><br/><label>Dewey Class. No.: </label>551 SCI