1996. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. World Administrative Units 2000 represents the boundaries for the first-level administrative units of the world, as they existed in 2000. Environmental Systems Research Institute, Inc. (ESRI).
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2006. United States. Bureau of the Census, Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. This polygon layer joins the ESRI World Census IPC Demographics attribute table to the ESRI Data & Maps 2008 : World Countries datalayer, to enable... ESRI.
1996. Environmental Systems Research Institute, Inc. (ESRI) and Harvard Geospatial Library. World Countries 2000 represents the boundaries for the countries of the world, as they existed in 2000. Environmental Systems Research Institute, Inc. (ESRI).