BLACK,UYLESS <br/><br/>
COMPUTER NETWORKS:Protocols,Standards,and interfaces 

 - 2nd 
 - NEW DELHI  PHI  c1993 
 - 436 p. 
<br/><br/><label>ISBN: </label>8120310411 
<br/><br/><label>Dewey Class. No.: </label>004.6