Brown's signalling : how to learn the international code of visual and sound signals : based on information contained in the 1965 [i.e.1969] International Code of signals
Palmer, A. R.(Alfred Reginald),1917-
Glasgow Brown, Son & Ferguson
1979
Previous ed.: i.e. Rev. ed.: 1974
International regulations for preventing collisions at sea (booklet: 31p) as insert
Signals and signaling.