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Author
- ESRI245
- Economic and Social Research Institute4
- Tele Atlas (Firm : U.S.)4
- Economic and Social Research Institute (Reston, Va.)3
- United States Geological Survey2
- AND International Publishers N.V.1
- National Atlas of the United States and the United States Geological Survey1
- Sistemas de Información Geográfica, S.A. de C.V.1
- Tele Atlas North America, Inc.1