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Author
- ESRI243
- International Steering Committee for Global Mapping (ISCGM)62
- United States. Bureau of Transportation Statistics16
- Environmental Systems Research Institute (Redlands, Calif.)5
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)5
- Digital Social Science Center (DSSC), Columbia University Libraries4
- LeadDog Consulting, LLC4
- New York (N.Y.). Department of Information Technology and Telecommunications.4
- United States. National Imagery and Mapping Agency4
- Federal Railroad Administration (FRA)3
- NAVTEQ (Firm)3
- United States. Army. Corps of Engineers.3
- DeLorme Publishing Company, Inc.2
- Economic and Social Research Institute (Reston, Va.)2
- FHWA2
- Federal Highway Administration (FHWA)2
- National Atlas of the United States and the United States Geological Survey2
- Office de la Topographie et de la Cartographie2
- AND International Publishers N.V.1
- Australian Surveying and Land Information Group (AUSLIG)1