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by Standards Association of Australlia;
Year: 1985
Book
by Moffatt, Bob;
Year: 1988.
Book
by Morrison, Hugh; Sinclair, Steve;
Year: 1981.
Book
by Professional Association of Diving Instructors;
Year: 2000
Book
by United States. National Oceanic and Atmospheric Administration. Manned Undersea Science and Technology Office;
Year: 1975
Book
by Standards Australia (Organization); Standards New Zealand;
Year: 2007
Book