Creator
- United States. Department of Housing and Urban Development15
- Kelso, Nathaniel Vaughn11
- Patterson, Tom11
- Gap Analysis Program (U.S.)3
- United States. Bureau of Transportation Statistics2
- United States. Bureau of the Census. Geography Division2
- Environmental Systems Research Institute (Redlands, Calif.)1
- National Atlas of the United States1
- U.S. Census Bureau. Geography Division1