Kuo, Benjamin C. <br/><br/>
Automatic Control Systems 

 - 3rd Ed. 
 -  Prentice-Hall  of India PVT. Ltd., New Delhi  1982 
 - xi, 659 
<br/><br/><label>ISBN: </label>0876921330, 
<br/><br/><label>Dewey Class. No.: </label>Column-60