Emmons, William Harvey <br/><br/>
General economic geology  A textbook 

 - 1st ed. 
 - London  McGraw - Hill book company, inc.  1922 
 - xiii, 516p.  Illustration  22cm x 14cm  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology<br/>Economic geology<br/>Mines and mineral resources
<br/><br/><label>Dewey Class. No.: </label>553  / EMM