Ratcliff, R A <br/><br/>
Delusions of Intelligence: Enigma, Ultra and the End of Secure Ciphers  

 - New York  Cambridge University Press  2006 
 - 314p 
<br/><br/><label>ISBN: </label>9780521736626  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Enigma Cipher System
<br/><br/><label>Dewey Class. No.: </label>940.548743