ROY,H S & OTHERS <br/><br/>
EXTRACTION OF NONFERROUS METALS 

 - NEW DELHI  East & West Publishing  1999 
 - x+531p.,24X18Cms 
<br/><br/><label>ISBN: </label>8185095639 
<br/><br/><label>Dewey Class. No.: </label>669.2 R263