NOAA diving manual : diving for science and technology
Website, English, [1991]-
U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research, Office of Undersea Research ; [For sale by the U.S. G.P.O., Supt. of Docs.], [Silver Spring, Md.] (1335 East-West Highway, Room 5262, Silver Spring 20910), [Washington, DC], [1991]-