Title: Codebreakers
Subjects: Great Britain. Government Communications Headquarters, Secret service, World War, 1939-1945, Cryptography, British Personal narratives, Electronic intelligence, Great Britain, History, World war, 1939-1945, cryptography, World war, 1939-1945, secret service, World war, 1939-1945, personal narratives, british
Places: Great Britain, Bletchley Park (Buckinghamshire, England)