The history of codes and ciphers in the United States during World War I /

Bibliographic Details
Corporate Author:	United States. Army Security Agency. Historical Section
Other Authors:	Barker, Wayne G.
Format:	Book
Language:	English
Published:	Laguna Hills, Calif. : Aegean Park Press, [1979]
Series:	Cryptographic series.
Subjects:	World War, 1914-1918 > Cryptography. Cryptography > United States > History. Ciphers > History.

Cushing: Ragan Military (Does not check out)