http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Office of Transportation and Air Quality.
Title from title screen (viewed on Feb. 7, 2008).
Mode of access: Internet. Address as of 2/7/08: http://epa.gov/OMSWWW/consumer/f02055.pdf ; current access available via PURL.