Gupta, Prakash C. <br/><br/>
Data communications 
Prakash C. Gupta. 
 - 3rd ed.. 
 - New Delhi  Prentice Hall  1998 
 - ix,475p., 24cm. 
<br/><br/><label>ISBN: </label>81-203-1118-3. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Transmission Computer Communication. 
<br/><br/><label>Dewey Class. No.: </label>005.71  / G96D