ULTRA, MAGIC, and the allies
By: introduction by Timothy Mulligan.
Contributors: Mulligan, Timothy.
Series: Covert warfare ;; 1
Publisher: Garland
Published: 1989
Place of publication: New York
Language: eng
Subjects: World War, 1939-1945 -- Cryptography -- Sources.; World War, 1939-1945 -- Secret service -- Great Britain -- Sources.; World War, 1939-1945 -- Secret service -- United States -- Sources.
Notes: Includes bibliographies.