Down C G <br/><br/>
Environmental impact of mining 
Down C G; Stocks J 
 - London  Applied Science Publisher         1977 
 - 372p.  cm. 
<br/><br/><label>Standard No.: </label>39651 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>G;50gHZ, L7