Principles of electronic communication systems / 
Frenzel, Louis E. 
 - 3rd ed. 
 - New York :  The McGraw-Hill Companies, Inc.,  2008. 
 - xiii, 930 p.: col. Ill.; 28.4 cm. 
<br/><br/>Includes glossary, credits, index 
<br/><br/><label>ISBN: </label>9780071106078 
<br/><br/><label>Dewey Class. No.: </label>C 621.382 F879 2008