http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
GPO Cataloging Record Distribution Program (CRDP).
Mode of access: Internet at the U.S. Census Bureau web site. Address as of 2/25/04: http://www.census.gov/epcd/www/guide.html; current access available via PURL.