Stallings, William. <br/><br/>
Network security essentials :  Applications and standards / 
By William Stallings 
 - 4th ed. 
 - New Delhi :  Pearson Education ,  2012. 
 - xiv, 417p ;  PB ;  23 cm. 
<br/><br/><label>ISBN: </label>9788131761755 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography-Data encryption<br/>Network Security Applications<br/>System Security<br/>Online Appendices
<br/><br/><label>Dewey Class. No.: </label>005.82  / STAW