The Oriskany sandstone in the subsurface of Pennsylvania /

by Abel, Kathleen D.
Harrisburg, Pa. : Commonwealth of Pennsylvania [Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey] : May be purchased from State Book Store, 1981

Upper Devonian stratigraphy and sedimentary environments in northeastern Pennsylvania /

by Glaeser, J. Douglas
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1974