Ziemer, Rodger E. <br/><br/>
Principles of communications: systems, modulation, and noise 

 - 2nd 
 - Boston  Houghton Mifflin company  1985 
 - 609 p 
<br/><br/><label>ISBN: </label>0395357241 
<br/><br/><label>LC Class. No.: </label>TK 5101 .257/