Stallings, William <br/><br/>
Protect your privacy ; the pgp user's guide 

 - Prentic-Hall PTR, New Jersey  1995 
 - xvi,302p 
<br/><br/><label>ISBN: </label>0-13-185596-4 
<br/><br/><label>Dewey Class. No.: </label>384.648 Sta