Govt. Of.....(ministry OF Industry) <br/><br/>
Public enterprises Survey 1996-97 
Govt. Of.....(ministry OF Industry) 
 - New Delhi  New Delhi, Ministry of Industry  1996 
 - 523, 325, 720 
 -  Vol.1, 2, 3 .
<br/><br/><label>Source: </label>Textbook