BLACK U.D. <br/><br/>
DATA COMMUNICATIONS AND DISTRIBUTED NETWORKS 

 - 3rd ed. 
 -  NEW DELHI : PRINTICE HALL  1993 
 - 426 p. 
<br/><br/><label>ISBN: </label>0008120309251 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DATA COMMUNICATION : COMPUTER NETWORKS
<br/><br/><label>Dewey Class. No.: </label>004.6  / B41