Harrington, Jan L. <br/><br/>
Network security :  a practical approach / 
Jan L. Harrington 
 - Amsterdam :  Elsevier,  2005 
 - 365 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0123116333 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures