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Publisher
- ESRI273
- CHGIS, Harvard Yenching Institute56
- Esri20
- Department of Information Technology and Telecommunications2
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)2
- Environmental Systems Research Institute, Inc. (ESRI)1
- Federal Highway Administration (FHWA)1
- Research and Innovative Technology Administration/Bureau of Transportation Statistics1
- U.S. Bureau of the Census (BOC)1
- U.S. Geological Survey1