Nagrath,I. J  & Kothari,D. P <br/><br/>
Theory and problems of electric machines 

 - Tata McGraw Hill, New Delhi  1997 
 - x,297 
<br/><br/><label>ISBN: </label>0-07-460276-4 
<br/><br/><label>Dewey Class. No.: </label>621.31042 Nag/Kot