Freeman, Roger L. <br/><br/>
Telecommunication Transmission Handbook 

 - 3a. ed 
 - New York :   Wiley,   1991. 
 - xxv , 1014 p. : 24 cm. 
<br/><br/><label>ISBN: </label>0471080292 0471518166 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELECOMUNICACIONES
<br/><br/><label>Universal Decimal Class. No.: </label>621.39