P. C. Gupta <br/><br/>
Data Communications 

 - New Delhi  PHI  1999 
 - 475 
<br/><br/><label>ISBN: </label>8120311183 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BE Computer
<br/><br/><label>Dewey Class. No.: </label>105.23  / Gup