I.J. Nagrath & M. Gopal - <br/><br/>
Control Systems Engineering 

 - 5th ed 
 -   Ashan Ltd  ©2008 
<br/><br/><label>ISBN: </label>9781848290037  294.5294.5 
<br/><br/><label>Dewey Class. No.: </label>629.8/NAG