Skinner, Brian J. <br/><br/>
Earth resources 

 - Englewood Cliffs  Prentice Hall  1976 
 - vii,151p.  23cm. 
<br/><br/><label>ISBN: </label>0132230089 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources
<br/><br/><label>LC Class. No.: </label>TN146.S54