JEFFORDS, JOHN M. <br/><br/>
ELECTRONIC COMMUNICATIONS : PRINCIPLES AND SYSTEMS. 

 - NEW DELHI  CENGAGE LEARNING PVT. LTD. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  ELECTRONIC COMMUNICATIONS
<br/><br/><label>Dewey Class. No.: </label>004.65  / JEF