http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Description based on: 1994; title from title screen (viewed on June 17, 2004).
Mode of access: Internet at the USGS web site. Address as of 6/17/04: http://minerals.usgs.gov/minerals/pubs/state/il.html#myb; current access available via PURL.