Roonwal, G.S.  <br/><br/>
Mineral Resources and Development 

 - 1st  
 - DELHI  Daya Publishing House  2005 
 - 237p. 
<br/><br/> 11487 
<br/><br/><label>ISBN: </label> 800 
<br/><br/><label>Dewey Class. No.: </label>553  ROO  G