BHEL <br/><br/>
HAND BOOK OF SWITCHGEARS 

 - NEW DELHI  TATA MCGRAW- HILL PUB COMPANY  LTD       2005 
 - xxxiii. 21 
<br/><br/><label>ISBN: </label>0-07-053238-9 
<br/><br/><label>Dewey Class. No.: </label>621.317