1991. U.S. Census Bureau. and GeoLytics, Inc. District boundaries for the 102nd United States Congress, Jan. 3, 1991 to Jan. 3, 1993. Harvard Geospatial Library.
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2001. U.S. Census Bureau. Geography Division and Environmental Systems Research Institute (Redlands, Calif.). U.S. 107th Congressional Districts represents political boundaries for the U.S. 107th Congressional Districts. ESRI.
2002. Environmental Systems Research Institute (Redlands, Calif.). World Countries 2002 represents the boundaries for the countries of the world, as they existed in September 2002. ESRI.
2002. United States. Central Intelligence Agency, Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. This polygon layer joins the World Country Memberships of Political Organizations attribute table to the ESRI Data & Maps 2003 : World Countries 20... ESRI.
1995. CountryWatch.com INC., Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. This polygon layer joins the CountryWatch Demographics attribute table to the ESRI Data & Maps 2003 : World Countries 2002 datalayer, to enable spa... ESRI.
2000. CountryWatch.com INC., Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. This polygon layer joins the CountryWatch Demographics attribute table to the ESRI Data & Maps 2004 : World Countries 2004 datalayer, to enable spa... ESRI.
2003. Environmental Systems Research Institute (Redlands, Calif.). U.S. 108th Congressional Districts represents an interim version of the political boundaries for the U.S. 108th Congressional Districts. The U.S. C... ESRI.
1972. Geological Survey (U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. National Atlas Federal and Indian Land Areas represents the federal and Indian owned land areas (e.g., Bureau of Indian Affairs, Department of... ESRI.
2002. Geographic Data Technology, Inc., U.S. Census Bureau. Geography Division, and Environmental Systems Research Institute (Redlands, Calif.). U.S. Populated Place Areas represents populated place areas that include census designated places, consolidated cities, and incorporated places wit... ESRI.
1996. Environmental Systems Research Institute (Redlands, Calif.). World Administrative Units represents the boundaries for the first-level administrative units of the world. ESRI.