Harrington; Jan L <br/><br/>
Network Security: a practical approach / 
Harrington; Jan L. 
 - Amsterdam ; Boston:  Morgan Kaufmann Publishers, : Elsevier,  2005. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8131202166 
<br/><br/><label>Dewey Class. No.: </label>005.8 22 HAR