http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from title screen (viewed on Apr. 28, 2004).
Mode of access: Internet at the BTS web site. Address as of 4/28/04: http://www.bts.gov/omnibus%5Fsurveys/household%5Fsurvey/; current access available via PURL.