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Edition cover

Thirty secret years

  • Robin Denniston

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Genres

  • Cryptography
  • World War, 1914-1918
  • Secret service
  • World War, 1939-1945
  • Cryptographers
  • Biography
  • History
  • Officials and employees
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About the author

  • Robin Denniston

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    0 ratings · 8 works

Editions

  • Edition cover

    Polperro Heritage Press

    2007