Room 40
Subtitle: British Naval Intelligence, 1914-18
By: by Patrick Beesly.
Publisher: Hamilton
Published: 1982
Place of publication: London
Language: eng
Number of pages: 338
Subjects: Great Britain. Naval Intelligence Division. Room 40; World War, 1914-1918 -- Secret service -- Great Britain; World War, 1914-1918 -- Naval operations, British
Other titles: Room forty.
Notes: Bibliography: p. [321]-323.
Includes index.