"Monongahela River Watershed (W. Va. and Pa.)" . . "Kentucky River Watershed (Ky.)" . . "Cumberland River Watershed (Ky. and Tenn.)" . . . . . . . . . . . . . . . . "Surface water supply of the United States, 1946. Part 3, Ohio River basin"@en . "Surface water supply of Ohio River basin, 1946"@en . . "Surface water supply of the United States, 1946. Part 3, Ohio River basin" . "Surface water supply of Ohio River basin, 1946" . . . . . . . . . . . . . . . "Kanawha River Watershed (W. Va.)" . . "Tennessee River Watershed." . . . .