http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Also available via the Internet from the NGDC NOAA web site. Address as of 2/13/08: http://www.ngdc.noaa.gov/mgg/bathymetry/maps/previews/BR-7.pdf; current access via PURL.