http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Population and housing characteristics for census tracts and block numbering areas. Boston-Lawrence-Salem, MA-NH CMSA (part). Boston, MA PMSA
Population and housing characteristics for census tracts and block numbering areas
Boston-Lawrence-Salem, MA-NH CMSA (part)
Includes bibliographical references (sec. 2, p. F-4).