Atkinson.J <br/><br/>
Telephony 

 - London  Pitman publishing  1979 
 -  I .
<br/><br/><label>ISBN: </label>0000024054 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephony<br/>Telephony(621.385)
<br/><br/><label>Dewey Class. No.: </label>621.385