Title: Seizing the Enigma
Subjects: World war, 1939-1945, cryptography, World war, 1939-1945, naval operations, german, World war, 1939-1945, naval operations, submarine, World war, 1939-1945, military intelligence, World war, 1939-1945, great britain, World War, 1939-1945, Cryptography, German Naval operations, Naval operations, Submarine, Naval Military operations, German, World War (1939-1945) fast (OCoLC)fst01180924