Publisher
- Birdlife International1
- National Energy Information Center (U.S.)1
- National Geophysical and Solar-Terrestrial Data Center1
- Placer County Geographic Information Systems1
- Santa Clara County (Calif.). Planning Office1
- Santa Clara Valley Water District (Calif.)1
- Science1
- Tehama County Public Works1
- U.S. Fish and Wildlife Service1
- United States. National Ocean Service1
- Virtual Shanghai Project1