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).
Search Results
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).