Understanding data communication 
[ed] George E Friend...[et al] 
 - New Delhi :  Prentic-hall,  1996 
 - 435p. :   ill.    24 cm.  
<br/><br/>Includes index  
<br/><br/><label>ISBN: </label>8120310802 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>4.6  / HEU