Creator
- United States. Department of Housing and Urban Development16
- Environmental Systems Research Institute (Redlands, Calif.)10
- Geological Survey (U.S.)8
- Gap Analysis Program (U.S.)3
- United States. Bureau of Transportation Statistics3
- Stackhouse, Cecil2
- International Association of Seismology and Physics of the Earth's Interior1
- International Heat Flow Commission1
- National Atlas of the United States1
- National Energy Information Center (U.S.)1
- Oklahoma State University. Department of Geography. Cartography Service1
- United States Geological Survey1