Goncalves, Marcus <br/><br/>
Firewalls: a complete guide 

 - New Delhi  Tata McGraw-Hill 
 - xxiv, 678p. 
<br/><br/>   
<br/><br/><label>ISBN: </label>007-463972-2 
<br/><br/><label>Subjects--Index Terms: </label>Firewalls  Network security  Security- Networking  Computer science