Brewster, R. L. <br/><br/>
Communication system and computer networks 

 - New York  John Wiley & Sons  1989. 
 - 144p.: ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0745805523 
<br/><br/><label>LC Class. No.: </label>TK 5705.5  / bre1989.