Title: Codebreakers
Subjects: E tudes diverses, De cryptage, Cryptography, British Personal narratives, Electronic intelligence, Geheimschrift, Erlebnisbericht, World War (1939-1945) fast (OCoLC)fst01180924, Services secrets, Weltkrieg (1939-1945), Great Britain. Government Communications Headquarters, Secret service, World War, 1939-1945, Government Communications Headquarters, Dechiffrierung, Great Britain, History, Études diverses, Décryptage, Weltkrieg, Guerre mondiale, 1939-1945, Cryptographie, Service secret, Renseignement électronique, Récits personnels britanniques, World war, 1939-1945, cryptography, World war, 1939-1945, secret service, great britain, World war, 1939-1945, personal narratives, british, Great britain, biography