Skinner, Brian J.  1928- <br/><br/>
Earth resources / 
Brian J. Skinner. 
 - 2nd ed. 
 - Englewood Cliffs, N. J. :  Prentice-Hall,  1976. 
 - 151 p. :  ill. ;  24 cm. 
 - Foundations of earth science series. .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>013223016X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources.<br/>Natural resources--United States.