Thapar's Indian industrial directory 1969  
/ Indian Industrial Directory 
 - 3rd ed.  
 - Calcutta:  Indian Industrial Directory,   1969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics 
<br/><br/><label>Subjects--Index Terms: </label>Metallurgical  
<br/><br/><label>Universal Decimal Class. No.: </label>R 38(058.7)(540)