Smith, J. R. G. <br/><br/>
Elementry telecommunication practice  [Books]. 
J. R. G. Smith. 
 - 3rd. ed. 
 - London  The English Language Book Society.  1980 
 - 319p. 
<br/><br/><label>ISBN: </label>0340046198  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Telecommunication.
<br/><br/><label>Dewey Class. No.: </label>TK/5101  / SMI