Frenzel, Louis E  <br/><br/>
Principles of electronic communication systems  
/ Louis E. Frenzel Jr.. 
 - 3rd ed.. 
 - Boston  McGraw-Hill Higher Education  2008. 
 - xiii, 930p  ill  28cm 
<br/><br/><label>ISBN: </label>9780073107042  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital communications<br/>Electronic systems
<br/><br/><label>Dewey Class. No.: </label>621.382 FRE 2008