Hastings, Max <br/><br/>
The secret war :  spies, ciphers and guerrillas 1939-45. 
 Secret war :  spies, ciphers and guerrillas 1939-1945 

 - xxvii, 612 pages, 32 unnumbered pages of plates :  illustrations 
<br/><br/><label>ISBN: </label>9780007503742 9780007503919 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spies--History.<br/>World War, 1939-1945--Electronic intelligence.<br/>World War, 1939-1945--Secret service.<br/>World War, 1939-1945--Cryptography.
<br/><br/><label>Dewey Class. No.: </label>940.5486