Principles of communications: system modulation and noise 
Principles of communications system modulation and noise 
 - 5th ed.  "xii, 802 p. : ill. ; 24 cm. ; pbk." 
 - New York   John Wiley & Sons  2007 
<br/><br/><label>ISBN: </label>9788126508396 
<br/><br/><label>Dewey Class. No.: </label>621.3822 ZIE  / 2.621.3822ZIE