Black, Uyless D. <br/><br/>
Data communication and distributed networks 

 - 3rd ed. 
 - Delhi  Prentice Hall of India  1995 
 - xvi, 426p.  24 cm. 
<br/><br/><label>ISBN: </label>8120309251 
<br/><br/><label>Dewey Class. No.: </label>005.758  / BLA