Stallings William <br/><br/>
Business Data Communications 

 -  "Pearson Prentice-hall, New Delhi"  2006 
 - 659 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>8131704955 
<br/><br/><label>Dewey Class. No.: </label>4.6  / STA