International code of signals, 1969, suitable for transmission by all means of communication
Subtitle: coming into operation 1 April 1969.
Contributors: Great Britain. Board of Trade.
Edition: (New ed.).
Publisher: H.M.S.O
Published: 1969
Place of publication: London
Language: eng
Number of pages: 149
Subjects: Signals and signalling.
Notes: At head of title: Board of Trade.

Previous ed. 1931.