The Zimmermann telegram of January 16, 1917 and its cryptographic background
By: by William F. Friedman and Charles J. Mendelsohn.
Contributors: Mendelsohn, Charles J.
Series: Cryptographic series
Publisher: Aegean Park Press
Published: 1976
Place of publication: Laguna Hills, Calif
Language: eng
Number of pages: 33
Subjects: Zimmermann, Arthur, -- 1864-1940.; World War, 1914-1918 -- Causes.; Ciphers.; Cryptography.