Ray, H. S., Au. <br/><br/>
Extraction of nonferous metals 

 - New Delhi  Affiliated East Wast Press Pvt Ltd  1994 
 - x,531p.  24cm. 
<br/><br/><label>ISBN: </label>8185095639 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Nonferrous metals
<br/><br/><label>Dewey Class. No.: </label>669.0285  / R22E