Title: Lorenz
Description: 240 pages : 25 cm
Subjects: World war, 1939-1945, great britain, Great Britain. Government Communications Headquarters -- History, Great Britain. Government Communications Headquarters, World War, 1939-1945 -- Cryptography, Lorenz cipher system, Military intelligence -- Great Britain -- History -- 20th century, Cryptography, Military intelligence, Bletchley (Buckinghamshire, England) -- History, England -- Bletchley (Buckinghamshire), Great Britain, World War, 1939-1945, History