Geology of the Amity quadrangle, Pennsylvania /

by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013
Published 1964

Geology of the Ellsworth quadrangle, Pennsylvania /

by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013
Published 1964

Geology of the Washington west quadrangle, Pennsylvania /

by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013
Published 1964

Geology of the Washington East quadrangle, Pennsylvania /

by Swanson, Vernon Emanuel, 1922-
Published 1964

Coal-bearing Upper Pennsylvanian and Lower Permian rocks, Washington area, Pennsylvania /

by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013, Kent, Bion H. (Bion Huntley), 1925-, Schweinfurth, Stanley P.
Published 1971