Burns, David <br/><br/>
CCNP security IPS 642-627 official cert guide 

 - New Delhi  Pearson Education  2012 
 - xxxiv, 636p.  
<br/><br/> CDBK 4639; Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788131786789 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cisco -- IPS software<br/>Cisco certified network professional(CCNP)