Held, Gilbert <br/><br/>
Understanding Data Communications 

 - 7 
 - New Delhi  Pearson Education  2009 
 - 765 
<br/><br/> Understanding,Data,Communications,Communication Networks 
<br/><br/><label>ISBN: </label>978-81-317-0872-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication Networks