Kennedy, George. <br/><br/>
Electronic Communication Systems 

 - 2a. ed 
 - Tokyo :   McGraw-Hill,   1977. 
 - xxiv , 774 p. : 21 cm. 
<br/><br/><label>ISBN: </label>0070340528 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMUNICACIONES
<br/><br/><label>Universal Decimal Class. No.: </label>621.39