The American black chamber
By: Herbert O. Yardley.
Series: Bluejacket books
Publisher: Naval Institute Press; US Naval Institute Press
Published: 2004
Place of publication: Annapolis, Md
Language: eng
Number of pages: 375
Subjects: United States. War Dept. Military Intelligence Division. Section No. 8 -- History.; World War, 1914-1918 -- Secret service -- United States.; World War, 1914-1918 -- Military intelligence.; Cryptography.
Notes: Originally published: Indianapolis : Bobbs-Merrill, 1931.