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. San Diego, CA MSA
Population and housing characteristics for census tracts and block numbering areas
Population and housing characteristics for census tracts and block numbering areas San Diego, CA MSA
Includes bibliographical references (Sec. 2, p. F-4).