Archer, K <br/><br/>
Voice and data security 

 - New Delhi :  Techmedia,  2001. 
 - xv,484 
<br/><br/><label>ISBN: </label>81-7635-555-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer EngineeringInformation Technology
<br/><br/><label>Dewey Class. No.: </label>004.6  / ARC