Wilkins, Sean,  1975- <br/><br/>
CCNP security secure 642-637 official cert guide / 
Sean Wilkins, Franklin H. Smith III 
 - Indianapolis, IN :  Cisco Press,  2011 
 - xli, 637 p. :  ill. ;  24 cm. +  1 CD-ROM 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781587142802 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures--Examinations--Study guides<br/>Telecommunications engineers--Certification