Thackers's directory of the chief industries of India and Pakistan  
/ Thacker's Press & Directories, Ltd. 
 - 67th ed.  
 - Calcutta:   Thacker's Press & Directories, Ltd.,   1960 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics 
<br/><br/><label>Subjects--Index Terms: </label>Copper  
<br/><br/><label>Universal Decimal Class. No.: </label>R 38(058.7)   / K0