Horak, Ray <br/><br/>
Communications systems and networks 

 - 3 
 - Indianapolis  Wiley Publishing  2002 
 - xlii, 678p. : ill. ;  
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>764548999 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication networks<br/>Computer networks<br/>Data communications<br/>Public switched telephone network -- PSTN<br/>Voice communications systems<br/>Wireless networking