Bhel <br/><br/>
Handbook of Switchgears 

 - New Delhi :  Tata McGraw-Hill Publishing Company Limited,  c2005. 
 - xxxiii,  ill.; 
<br/><br/><label>ISBN: </label>0070532389 
<br/><br/><label>Dewey Class. No.: </label>621.31  / BHE/HAN