Ries, H. <br/><br/>
Economic geology 

 - 7th ed. 
 - New York  John wiley & sons, inc  1937 
 - vii, 720p.  Illustration  22cm x 13cm  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic geology<br/>Geology<br/>Mines and mineral resources
<br/><br/><label>Dewey Class. No.: </label>553  / RIE