Stallings, William <br/><br/>
Business data communications 
William Stallings, with a contribution by Richard Van Slyke 
 - 4th ed.  
 - Delhi  Pearson Education (Singapore) Pte Ltd  2001 
 - xxii, : 659p.  
<br/><br/><label>Dewey Class. No.: </label>004.6 STA