Charlton, L.E.O.. <br/><br/>
The Air Defence of Britain /  Textual Documents 
L.E.O.Charlton & G.T.Garratt. 
 - 1st ed. / 
 - Middlesex :  Penguin Books Ltd ,  1938. 
 - 224p. :  ill ;  20cm . 
<br/><br/><label>Subjects--Index Terms: </label>Air Defence G-Technology 
<br/><br/><label>Dewey Class. No.: </label>623.38  / C 381 Ai