Taub, Herbert. <br/><br/>
Principles of communication systems. 

 - 2a ed 
 - New York :   McGraw-Hill,   1986. 
 - xix, 759 p. : 24 cm. 
<br/><br/><label>ISBN: </label>0070629552 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMUNICACIONES
<br/><br/><label>Universal Decimal Class. No.: </label>621.39