Simonds, Fred <br/><br/>
Network security  data and voice communications 

 - New York  McGraw-Hill  1996 
 - xix,395 p. 
<br/><br/><label>ISBN: </label>0070576343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMPUTER SCIENCE
<br/><br/><label>Universal Decimal Class. No.: </label>004.056  / SIM