Kennedy, George. <br/><br/>
Electronic communication systems 
/ by George Kennedy  
 - 3rd ed. 
 - New Delhi:   Tata McGraw-Hill Publishing Company Ltd.,   1991 
 - xxii,741p. 
<br/><br/><label>ISBN: </label>0070340544 
<br/><br/><label>Dewey Class. No.: </label>621.382  / KEN/E