Aries, S. J. <br/><br/>
Dictionary of telecommunications / 
S.J. Aries 
 - London :  Butterworths,  1981 
 - 329 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0408003286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems--Dictionaries