Rider, John F.  <br/><br/>
Radar :   what it is / 
John F. Rider and G.  C.  Baxter Rowe 
 - New York :   J.F. Rider publisher,   c 1946. 
 - 72 p. :  ill. ;  27 cm. 
<br/><br/>67  67 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radar.
<br/><br/><label>Dewey Class. No.: </label>621.381 / R435r