4 results Refine Results
  1. 1
    by Kahn, David, 1930-
    Published 1991
    Subjects “...World War, 1939-1945 Cryptography....”
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    Seizing the enigma : the race to break the German U-boat codes, 1939-1943 /
  2. 2
    by Kahn, David, 1930-
    Published 1996
    Subjects “...World War, 1939-1945 Cryptography....”
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    Seizing the enigma : the race to break the German u-boat codes, 1939-1943 /
  3. 3
    by Winton, John, 1931-
    Published 1993
    Subjects “...World War, 1939-1945 Cryptography....”
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    Ultra in the Pacific : how breaking Japanese codes & cyphers affected naval operations against Japan 1941-45 /
  4. 4
    by McKee, Alexander, 1918-
    Published 1991
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    El Alamein : Ultra and the three battles /

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