Jolley, E. H.  <br/><br/>
Telecommunications / 
E. H. Jolley. 
 - London :  Cox and wyman,   1963. 
 - 144 p. :  ill. ;  18 cm. 
<br/><br/> Includes index. 
<br/><br/>336  336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunications.<br/>Electric communications.
<br/><br/><label>Dewey Class. No.: </label>621.38 / J683t