DATA COMMUNICATION  AND NEWORKING 

 - NEW DELHI   BPB PUBLICATIONS 
 -  CM 
<br/><br/><label>ISBN: </label>81-7656-484-2 
<br/><br/><label>LC Class. No.: </label>005.7 JAI 2001 
<br/><br/><label>Dewey Class. No.: </label>005.7 JAI 2001