Stallings,Williams, <br/><br/>
Data and Computer Communications 
By William Stallings 
 - 9th Ed. 
 -  Pearson Education Limited  2011 
 - 864p. 
<br/><br/><label>ISBN: </label>978-93-325-1886-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data
<br/><br/><label>Dewey Class. No.: </label>BV  / Q1