Singh Brijendra <br/><br/>
Data Communications and Computer Networks 
/ by Brijendra Singh  
 - New Delhi  Phi Learning Private Limited  2011 
 - 399p. 
<br/><br/><label>ISBN: </label>9788120344662 
<br/><br/><label>Dewey Class. No.: </label>004.6  / SIN/D