Stallings, William. <br/><br/>
Data and computer communications/ 
William Stallings 
 - 8th ed. 
 - New Delhi:  Pearson,  2009. 
 - 834 p. 
<br/><br/><label>ISBN: </label>9788131715369 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Data transmission systems
<br/><br/><label>Dewey Class. No.: </label>004.6  / STA/D