Kaufman, Charlie & Perlman,Radia & Speciner,Mike <br/><br/>
Network Security Private communication in  a Public world      

 - 2nd ed 
 - India  Person Education  2002 
<br/><br/><label>ISBN: </label>8178087901 
<br/><br/><label>Dewey Class. No.: </label>005.8