Dilly

By Mavis Batey

Subjects: Cryptographers -- Great Britain -- Biography, Great Britain, History, World War, 1914-1918 -- Cryptography, World War, 1914-1918, Spain -- History -- Civil War, 1936-1939 -- Cryptography, World War, 1939-1945, Cryptographers, Biography, World War, 1939-1945 -- Cryptography, Knox, A. D. (Alfred Dillwyn), 1884-1943, World war, 1939-1945, cryptography, Spain, Electronic data processing personnel, Cryptography, Great britain, biography

Description: xxiii, 244 pages, 16 unnumbered pages of plates : 20 cm