Population Projections to 1975 for the Tri-county Region W. Raymond Mills Published: 1958 Total Pages: 134 Get eBook
An Economic Survey of the Tri-counties Region of Upper East Tennessee Bristol (Tenn.). Regional Planning Commission Published: 1956 Total Pages: 100 Get eBook
Current Population Reports United States. Bureau of the Census Published: 1958 Total Pages: 522 Get eBook
The 1975-1990 Tri-County Regional Comprehensive Development Plan, September 1968 Tri-county Regional Planning Commission (Mich.) Published: 1969 Total Pages: 142 Get eBook
