Frenzel, Louis E. <br/><br/>
Principles of electronic communication systems / 
Louis E. Frenzel. 
 - 3rd  ed. 
 - Boston :  McGraw-Hill,  2008. 
 - xiii, 930 p. 
<br/><br/><label>ISBN: </label>0073107042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.