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

 - 2nd ed. 
 - Delhi: Prentice-Hall  1987 
 - xii,468p.  22 cm. 
<br/><br/><label>ISBN: </label>0835912094 
<br/><br/><label>Dewey Class. No.: </label>001.644046,  / BLA