Report on the history of the use of codes and code language, the international telegraph regulations pertaining thereto, and the bearing of this history on the Cortina Report
By: by Major William F. Friedman.
Contributors: Friedman, William F. 1891-1969.
Publisher: U.S. G.P.O.
Published: 1928
Place of publication: Washington
Language: eng
Number of pages: 80
Subjects: Cipher and telegraph codes.; Radio.
Other titles: History of the use of codes and code language, the international telegraph regulations pertaining thereto, and the bearing of this history on the Cortina Report.
Notes: Includes bibliographical references.