Stallings, William <br/><br/>
Network Security Essentials :  Applications and Standards 
/ by William stallings 
 - 4th ed. 
 - Chennai  Pearson  2011 
 - xiv,417p. 
<br/><br/><label>ISBN: </label>9788131761755 
<br/><br/><label>Dewey Class. No.: </label>005.8  / STA/N