Ratcliffe, J. A. <br/><br/>
The Physical principles of wireless/ 
J.A. Ratcliffee 
 - 3rd rev. ed. 
 - London:  Methuen,  1934 
 - viii, 136 p.;  18 cm. 
 - Monographs on Physical subjects .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wireless communication systems<br/>Radio--Antennas<br/>Radio--Transmitters and transmission<br/>Radio--Receivers and reception<br/>Telephone, wireless
<br/><br/><label>Dewey Class. No.: </label>621.384