Blum, Richard <br/><br/>
Open source E-mail security 

 - USA  Sams Publishing 
 - Soft Binding            480 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0-672-322737-4 
<br/><br/><label>Subjects--Topical Terms: </label>--Computer Science
<br/><br/><label>Dewey Class. No.: </label>658 COV-T