Eggert Roberick G Ed. <br/><br/>
Mining and the environmjent    International perspe    

 - Washington  Resources for the future. USA        1994 
 - 172p.  cm. 
<br/><br/> John M Olin distinguished lectures in mineral economics. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>X9(HZ):(G:55), N4