http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
National Environmental Satellite, Data, and Information Service.
map generated by the National Geophysical Data Center.
Title from HTML home page (viewed on June 5, 2008).
Mode of access: Internet from the NOAA NGDC web site. Address as of 6/5/08: http://map.ngdc.noaa.gov/website/mgg/greatlakesbathy/viewer.htm ; current access via PURL.