American Black Chamber
By: by Herbert O. Yardley.
Series: A cryptographic series :; 52
Publisher: Aegean Park Press
Published: 1990
Place of publication: Laguna Hills, Calif
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.