Publisher
- Birdlife International1
- Butte County (Calif.) -- Geographic Information Systems1
- California. Cal State Parks - Acquisition and Development Division.1
- Danmarks og Grønlands geologiske undersøgelse1
- Energy for Sustainable Development Africa1
- Environmental Systems Research Institute (Redlands, Calif.)1
- Nationale geologiske undersøgelser for Danmark og Grønland1
- Nature Conservancy (U.S.)1
- Northeast Region Ocean Council1
- Oakland (Calif.). Greeninfo.org1
- Placer County1
- Sacramento (Calif.). Office Of Emergency Services.1
- Sacramento Area Council of Governments1
- San Francisco (Calif.). Department Of Telecommunications and Information Services.1
- San Mateo County (Calif.)1
- Sierra Nevada Conservancy1
- Tehama County Public Works1
- U.S. Fish and Wildlife Service1
- UNEP World Conservation Monitoring Centre1
- UNEP executive series1