Hallows, R. W. <br/><br/>
Wireless, simply explained 

 - 1st ed. 
 - London  Chapman & hall  1949 
 - xii, 255 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio
<br/><br/><label>Dewey Class. No.: </label>621.384  / H193