Singh, Brijendra <br/><br/>
Network security and management 
Brijendra Singh 
 - New Delhi:  PHI Learning,  2009 
 - xiv,326p. 
<br/><br/><label>ISBN: </label>9788120339101 
<br/><br/><label>Dewey Class. No.: </label>004.738.5  / SIN