Publisher
- United States. Bureau of the Census. Geography Division20
- Bay Area Open Space Council1
- California. Department of Fish and Game. Marine Resources Region1
- California. Metropolitan Transportation Commission1
- County of San Mateo Information Services Department1
- Geological Survey (U.S.)1
- Santa Clara County (Calif.). Planning Office1
- Santa Clara Valley Water District (Calif.)1
- United States. Bureau of Transportation Statistics1
- World Resources Institute1