Smol, G. and others <br/><br/>
Telecommunication systems  : talecommunications and society 

 - Keynes  ; The Open University Press  , 1976 
<br/><br/><label>ISBN: </label>0335061087  £2.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication Engineering<br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>621.382  / SMO