Hallows, R. W.  <br/><br/>
Radar :  simply explained / 
R. W. Hallows. 
 - 2nd ed. 
 - London :  Chapman & Hall,  1950. 
 - 190 p. :  ills. ;  19 cm. 
<br/><br/> Includes index. 
<br/><br/>319  319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radar.<br/>Aircraft.
<br/><br/><label>Dewey Class. No.: </label>621.381 / H185r