Geology and mineral resources of the Sabula and Penfield quadrangles,
Berg, Thomas M.
Geology and mineral resources of the Sabula and Penfield quadrangles, Clearfield, Elk, and Jefferson Counties, Pennsylvania, by Thomas M. Berg and Albert D. Glover. - Harrisburg, Pennsylvania Topographic and Geologic Survey, 1976. - ix, 98, 73-83 p. illus. (part in pocket) 23 cm. - Pennsylvania. A74ab. . - Atlas (Pennsylvania. Bureau of Topographic and Geologic Survey) ; A74ab. .
On spine: Geology of the Sabula and Penfield quadrangles. "Pennsylvania Geological Survey. 4th series." "Appendices 1-7 (p. A1-A72)" on microfiche in pocket.
Bibliography: p. 91-93.
77620998
Geology--Pennsylvania--Sabula Quadrangle.
Geology--Pennsylvania--Penfield Quadrangle.
Mines and mineral resources--Pennsylvania--Sabula Quadrangle.
Mines and mineral resources--Pennsylvania--Penfield Quadrangle.
Geology and mineral resources of the Sabula and Penfield quadrangles, Clearfield, Elk, and Jefferson Counties, Pennsylvania, by Thomas M. Berg and Albert D. Glover. - Harrisburg, Pennsylvania Topographic and Geologic Survey, 1976. - ix, 98, 73-83 p. illus. (part in pocket) 23 cm. - Pennsylvania. A74ab. . - Atlas (Pennsylvania. Bureau of Topographic and Geologic Survey) ; A74ab. .
On spine: Geology of the Sabula and Penfield quadrangles. "Pennsylvania Geological Survey. 4th series." "Appendices 1-7 (p. A1-A72)" on microfiche in pocket.
Bibliography: p. 91-93.
77620998
Geology--Pennsylvania--Sabula Quadrangle.
Geology--Pennsylvania--Penfield Quadrangle.
Mines and mineral resources--Pennsylvania--Sabula Quadrangle.
Mines and mineral resources--Pennsylvania--Penfield Quadrangle.