http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from title screen (viewed on Oct. 8, 2004).
Mode of access: Internet from the USGS web site. Address as of 10/8/04: http://pubs.usgs.gov/fs/2004/3072/FS2004-3072.pdf; current access is available via PURL.
Fact sheet (Geological Survey (U.S.)) ; 2004-3072