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Author
- ESRI10
- Geological Survey (U.S.)7
- Department of Commerce, Census Bureau6
- National Atlas of the United States6
- United States. Bureau of Transportation Statistics6
- Environmental Systems Research Institute (Redlands, Calif.)4
- Environmental Systems Research Institute, Inc. (ESRI)4
- Tele Atlas North America, Inc.4
- United States. Bureau of the Census. Geography Division4
- Hijmans, Robert J.3
- Tele Atlas B.V.3
- Tele Atlas North America, Inc./Geographic Data Technology, Inc.3
- U.S. Department of Agriculture (USDA), National Agricultural Statistics Service (NASS)3
- University of California, Berkeley. Museum of Vertebrate Zoology3
- CACI International, Inc.2
- ESRI Business Information Solutions2
- Geographic Data Technology, Inc.2
- Geographic Data Technology, Inc. (GDT)2
- National Atlas of the United States and the U.S. Geological Survey2
- National Atlas of the United States and the United States Geological Survey2