International radiotelegraph conference of Washington: 1927.
Subtitle: Delegation of the United States of America, committee on tariffs, word count, and accounting; report on the history of the use of codes and code language, the international telegraph relations pertaining thereto, and the bearing of this history on the Cortina report
By: by William F. Friedman.
Contributors: Friedman, William F. 1891-1969.
Publisher: Govt. print. off.
Published: 1928
Place of publication: Washington
Language: eng
Other titles: American report on codes and code languages.