Communications systems  networks  : voice, data  boradband technologies 
/ Ray Horok, Mark A. Miller 
 - New York  : MCT Books  , 1996 
 - xx, 486p.  : ill.  ; 23 cm.  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>Horok, Ray. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sistemas de telecomunicaciones<br/>Redes de computadoras
<br/><br/><label>LC Class. No.: </label>TK5101  / H665 1996