Stallings, William.  <br/><br/>
Data and computer communications 
/by William Stallings 
 - 8th ed. 
 - New Delhi  Pearson Education  2012 
 - xvi, 834 p. 
<br/><br/><label>ISBN: </label>8131715369 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data communications
<br/><br/><label>Dewey Class. No.: </label>005.71  / STA