Frenzel ,  Louis E.  <br/><br/>
Principles of electronic communication systems / 
Louis E. Frenzel. 
 - 3rd ED. 
 -   McGraw-Hill Education,  2008. 
 - xiii, 637 p. :  10.8 X 8.5 inches 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>621.382  / FRE