SHAY, WILLIAM A <br/><br/>
UNDERSTANDING DATA COMMUNICATIONS AND NETWORKS  

 - 3 ed. 
 - NEW DELHI  THOMSON ASIA PVT. LTD.  2004 
 - 766 
<br/><br/><label>ISBN: </label>0-534-38317-3 
<br/><br/><label>Dewey Class. No.: </label>004.6 21 O 04 SHA