Dungan, Frank R. <br/><br/>
Electronic communications systems. 

 - vii, 626p.  24 cm. 
<br/><br/><label>ISBN: </label>0-534-07698-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>Dewey Class. No.: </label>621.83 D919 1987