Stanley,  William D., <br/><br/>
Electronic Communication:  Principles and Systems /  
By William D. Stanley and John M. Jeffords.  
 - New Delhi  Cengage Learning  2009 
 - xviii; 702p.:  24 cm. 
<br/><br/><label>ISBN: </label>9788131503546 8131503542 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic Communication
<br/><br/><label>Dewey Class. No.: </label>621.382