http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
4th ed., June 21, 1986 (Correct through NM 25/86).
"Reproduction of Japanese chart 1212, August 1, 1984, with modifications in accordance with agreement between the Hydrographic Department of Maritime Safety Agency, Japan, and the Defense Mapping Agency, Hydrographic/Topographic Center. Japanese copyright law applies."
Relief shown by contours and spot heights.
"From surveys of the Hydrographic Department, M.S.A., Japan to 1982."