Hardy, James K. <br/><br/>
Electronic communications technology / 
James K. Hardy 
 - Englewood Cliffs, N.J. :  Prentice-Hall International,  1986 
 - 420 p. :  ill.  25 cm. 
<br/><br/><label>ISBN: </label>0132504324 
<br/><br/><label>LCCN: </label>85-25839 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication