http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Vols. for <1993-> also available via Internet from the Bureau's web site.
Data also included in CD-ROM publication: County business patterns.
County business patterns. Pt. 2, New England states, Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont