Publisher
- Gap Analysis Program (U.S.)60
- International Steering Committee for Global Mapping23
- New York (City). Department of City Planning18
- United States. Department of Housing and Urban Development17
- County of San Mateo Information Services Department3
- Newman Library (Bernard M. Baruch College)2
- California. Department of Water Resources1
- Placer County Geographic Information Systems1
- San Mateo County (Calif.)1
- Stanislaus County GIS Division1
- Tehama County Public Works1