Smith, J. R. G. <br/><br/>
Elementary telecommunication practice / 
J. R. C. Smith. 
 - 3rd ed. 
 - London, :  Hodder and Stoughton,  1967. 
 - xii, 329 p. :  ill. 
<br/><br/><label>ISBN: </label>0340046198 
<br/><br/><label>LCCN: </label>91034165     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.