http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from title screen (viewed on Aug. 10, 2004).
Mode of access: Internet from the EPA web site. Address as of 8/10/2004: http://www.epa.gov/owm/mtb/package%5fplant.pdf; current access available via PURL.