Creator
- Kelso, Nathaniel Vaughn6
- Patterson, Tom6
- Environmental Systems Research Institute (Redlands, Calif.)2
- California. Department of Transportation1
- California. Office of Statewide Health Planning and Development1
- Geological Survey (U.S.)1
- National Atlas of the United States1
- O'Neill, Michael1
- Schwarting, Ric1
- U.S. Census Bureau. Geography Division1