1972 International Regulations for Preventing Collisions at Sea : annotated for yachtsmen by Bill Anderson : in force 15th July 1977.
Anderson, Bill,1940-
Royal Yachting Association (Great Britain)
Southampton : Royal Yachting Association,
2003, c1988.
"These Rules are applicable internationally as from 29th November, 2003"--Pg. 1.
Collisions at sea
Rule of the road at sea.