International code of signals.
Published by the Hydrographic Office under the authority of the Secretary of the Navy.

APA Citation

Great Britain. Board of Trade. (1917). International code of signals. American ed. Washington: Govt. Print. Off..

MLA Citation

Great Britain. Board of Trade. International Code of Signals. American ed. Washington: Govt. Print. Off., 1917.

Warning: These citations may not always be complete (especially for serials).