Saisir l'énigme - La course pour briser les codes des sous-marins allemands, 1939-1943, David Kahn
Seizing the Enigma - The Race to break the German U-Boat Codes, 1939-1943, David KahnSeizing the Enigma - The Race to break the German U-Boat Codes, 1939-1943, David KahnThere are a great many books on the work of the Allied code breakers in the Second World War, so a new book really needs to stand out in some way to be worthwhile.