Ratcliffe, J. A. (John Ashworth) <br/><br/>
The physical principles of wireless / 
with a foreword by Sir E.V. Appleton. 
 - [9th ed.]. 
 - London : New York :  London : New York :  Methuen ; J. Wiley,  Methuen ; J. Wiley,  [1958] 
 - Methuen's monographs on physical subjects .
<br/><br/> First published in this ed. in 1952. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio.