Unbreakable: The Spies Who...
Rebecca E F Barone
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The Enigma Story: The Truth...
Sir John Dermot Turing
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X, Y and Z: The Real Story of...
Dermot Turing,
Arkady Rzegocki (Foreword by)
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Code-Breaker and...
Heather E. Schwartz
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Code Breaker
Ann Bryant
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Enigma: The Battle For The...
Hugh Sebag-Montefiore
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Code Breaker
Ann Bryant
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Mrs Mahoney's Secret War: The...
Claudia Strachan
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Unravelling Enigma
Maurice Freedman
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The Essential Turing: Seminal...
Alan Mathison Turing,
B Jack Copeland (Editor)
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Enigma: The Battle For The...
Hugh Sebag-Montefiore
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Enigma: The Battle for the...
Hugh Sebag-Montefiore
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Desperate Times
Pat Johnson
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Enigma: The Battle for the...
Hugh Montefiore
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Enigma
Hopkins Harris,
Robert Harris
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