Shelly, Gary B ; Cashman, Thomas J  & Serwatka, Judy A <br/><br/>
Business data communications  introductory concepts and techniques 

 - 3rd ed 
 - Thomson Learning, Boston  2001 
 - xvi,398p 
<br/><br/><label>ISBN: </label>0-7895-5958-7 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>004.6 She