A cross section of sub-Trenton rocks from Wood County, West Virginia to Fayette County, Illinois /

by Calvert, Warren L. (Warren Lytle)
Columbus : State of Ohio, Dept. of Natural Resources, Division of Geological Survey, 1963

The Geology and geophysics of the East Continent Rift Basin /

[Place of publication not identified] : Cincinnati Arch Consortium, 1992

The Sangamonian-Wisconsinan transition in southwestern Ohio and southeastern Indiana /

Columbus : Ohio Dept. of Natural Resources, Division of Geological Survey, 1992

A cross section of sub-Trenton rocks from Wood County, West Virginia to Fayette County, Illinois /

by Calvert, Warren L. (Warren Lytle)
Columbus : Ohio Dept. of Natural Resources, Division of Geological Survey, 1963