Shelly, Garry B. <br/><br/>
Business Data Communicatins: Introductory Concepts & Techniques 

 - 4th ed. 
 - New Delhi  Cengage Learning  2004 
 - xv 
<br/><br/><label>ISBN: </label> Rs.365.00 
<br/><br/><label>Dewey Class. No.: </label>Business Data Communication