Johnson, K S. <br/><br/>
Transmission circuits for telephonic communication : 

 - London :  Library Press,  1925. 
 - viii, 326 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Signal processing<br/>Telephony networks<br/>Wave propagation
<br/><br/><label>Dewey Class. No.: </label>621.3878  / JOH