THERAJA,BL THERAJA,AK <br/><br/>
A Textbook of  Electrical  Technology  Vol 2 

 -  S.Chand  and  Company  PVT.LTD New  Delhi,  2013 
 - 866-1568 
<br/><br/><label>ISBN: </label>81-219-2437-5 
<br/><br/><label>Dewey Class. No.: </label>537.62  / THE/A