Publisher
- Instituto Nacional de Estadística y Geografía (Mexico)32
- Geological Survey (U.S.)2
- Sacramento County GIS2
- Bakersfield (Calif.). Office of City Manager1
- Environmental Systems Research Institute (Redlands, Calif.)1
- International Steering Committee for Global Mapping1
- National Atlas of the United States1
- Placer County Geographic Information Systems1
- Stanislaus County GIS Division1
- UC Berkeley Library1