Kothari, D. P. and Nagrath, I. J. <br/><br/>
Electric machines / 

 - 3rd ed. 
 - New Delhi,  Prentice Hall,  c2006. 
 - xvii, 834 p. ;  ill. ; 
<br/><br/><label>ISBN: </label>0070583773 
<br/><br/><label>Dewey Class. No.: </label>621.31042