Dorf, Richard. <br/><br/>
Modern control systems. 

 - 9th ed. 
 - New York :  Addison-Wesley,  2000. 
 - xxiii, 831 pages :  illustrations. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>020150501740 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Feedback control systems.<br/>Feedback control systems.