Data and computer communication 
Stallings William 
 - 8th ed. 
 - New Jersey  Pearson  2009 
 - 878p. 
<br/><br/><label>ISBN: </label>978-0-13-507139-7 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Pure and Applied Sciences
<br/><br/><label>LC Class. No.: </label>TK5105  / .S73 2009