Hastings, Max,  <br/><br/>
The secret war :   spies, ciphers and guerrillas 1939-1945 

 - xxvii, 610 pages :   illustrations ;   23 cm 
<br/><br/> Bibliography pages : 579-585 ; Includes indexes 
<br/><br/><label>ISBN: </label>9780062259271 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War (1939-1945). ; Secret service. ; England - Milton Keynes - Bletchley Park. ; Underground movement, War.
<br/><br/><label>Dewey Class. No.: </label>940.5485