Held, Gilbert <br/><br/>
Data Communications 

 - 4th 
 - New Delhi  Prentice' Hall  1996 
<br/><br/><label>ISBN: </label>81-203-1080-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Communications
<br/><br/><label>Dewey Class. No.: </label>004.6  / HEL