Ratcliffe, J.A. <br/><br/>
The physical principles of wiles  /  
J.A.Ratcliffe. 
 - London :    Methuen ,    1929 
 - viii,102 p. :    ill. ;    17 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Wireless communication systems.
<br/><br/><label>Dewey Class. No.: </label>384.5