Shelly, Gary B.  <br/><br/>
Business Data Communications  :  Introductory Concepts and Techniques 
/  Gary B. Shelly, Thomas J. Cashman, Judy A. Hill ·  
 - Austrilia  thomson   2001 
<br/><br/><label>ISBN: </label>978-0789568069  295.00 
<br/><br/><label>Dewey Class. No.: </label>004.6  / C 549