Water quality in the Allegheny and Monongahela River Basins, Pennsylvania, West Virginia, New York and Maryland, 1996-98 /

Vydáno 2000

Water quality in the Lake Erie-Lake Saint Clair Drainages, Michogan, Ohio, Indiana, New York and Pensylvania, 1996-98 /

Vydáno 2000

Drainage basins, channels, and flow characteristics of selected streams in central Pennsylvania /

Autor Brush, Lucien M.
Vydáno 1961

Surficial geology and geomorphology of Potter County, Pennsylvania /

Autor Denny, Charles Storrow, 1911-1999
Vydáno 1956

Effect of agricultural land use on ground-water quality in a small Pennsylvania watershed /

Autor Pionke, Harry B., Urban, James B.
Vydáno 1985

Uranium occurrences in sedimentary rocks of Pennsylvania : contributions to the geology of uranium /

Autor Klemic, Harry, 1920-
Vydáno 1962

Guide to the mammals of Pennsylvania /

Autor Merritt, Joseph F., 1945-
Vydáno 1987

International Geological Congress : XVI. session, United States, 1933. Guidebook 20: Excursion C-2, Pennsylvanian of the northern mid-continent region /

Autor Moore, Raymond Cecil, 1892-1974
Vydáno 1932

Magnetite deposits of the Cornwall type in Pennsylvania /

Autor Spencer, Arthur C. 1871-1964
Vydáno 1908

Illinoian outwash in southeastern Pennsylvania /

Autor Lockwood W. N., Meisler, Harold, 1931-1991
Vydáno 1960

Geology of rocks of Pennsylvanian age in the southern half of the Tremont quadrangle Schuylkill County, Pennsylvania /

Autor Wood, Gordon H., Trexler, J. Peter, Yelenosky, Andy, Soren, Julian
Vydáno 1962

Geology and uranium occurrences of the Northern Half of the Lehighton, Pennsylvania, quadrangle and adjoining areas /

Autor Klemic, Harry, 1920-, Warman, James C., Taylor, Alfred R., 1928-2021
Vydáno 1963

Coal resources of Beaver County, Pennsylvania /

Autor Patterson, Elmer D.
Vydáno 1963

Coal resources of Lawrence County, Pennsylvania /

Autor Van Lieu, J. A., Patterson, Elmer D.
Vydáno 1964

On seedlike structures associated with Archaeopteris, from the Upper Devonian of Northern Pennsylvania /

Autor Arnold, Chester A. 1901-1977
Vydáno 1935

Ostracoda from the Permian of the Glass Mountains, Texas : a shorter contribution to general geology /

Autor Sohn, I. G. 1911-2000
Vydáno 1954

Upper Pennsylvanian and Lower Permian fusulinids from north-central Texas /

Autor Kauffman, A. E., Roth, R. I.
Vydáno 1966

Floras of the Pocono formation and Price sandstone in parts of Pennsylvania, Maryland, West Virginia, and Virginia, including descriptions of 22 new species, 1 new genus, and 4 new combinations of Mississippian age /

Autor Read, C. B., 1907-1979
Vydáno 1955

Chromite and other mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware /

Autor Pearre, Nancy C., Heyl, Allen V. 1918-2008
Vydáno 1960

International Geological Congress : XVI. session, United States, 1933. Guidebook 8: Excursion A-8, Mineral deposits of New Jersey and eastern Pennsylvania /

Vydáno 1932