Black, Uyless <br/><br/>
Computer Networks: Protocols, Standards, and Interfaces 

 - 2nd 
 - New Delhi  Prentice- Hall of India  1993 
 - 436p. 
<br/><br/><label>ISBN: </label>9788120310414 
<br/><br/><label>Dewey Class. No.: </label>004.6