Showing 1 - 20 results of 262 for search '', query time: 0.24s Refine Results
  1. 1
    Surficial alteration at the Cathedral of Learning in Pittsburgh, Pennsylvania /
    by McGee, E. S.
    Published 1997
    Government Document Microform Book
  2. 2
    Geologic map of the Catasauqua quadrangle, Northampton and Lehigh counties, Pennsylvania /
    by Drake, Avery Ala, 1927-
    Published 1996
    Government Document Microform Book
  3. 3
    Evaluation of geophysical logs, Phase I, at Willow Grove Naval Air Station, Montgomery County, Pennsylvania /
    by Conger, Randall W.
    Published 1997
    Government Document Microform Book
  4. 4
    Activities of the United States Geological Survey in Pennsylvania /
    Published 1997
    Government Document Microform Book
  5. 5
    Water-quality assessment of the Lower Susquehanna River Basin, Pennsylvania and Maryland : design and implementation of water-quality studies, 1992-95 /
    Published 1997
    Government Document Microform Book
  6. 6
    Influence of land use and open-water wetlands on water quality in the Lake Wallenpaupack basin, northeastern Pennsylvania /
    by Sams, James I.
    Published 1999
    Government Document Book
  7. 7
    Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania /
    Published 1999
    Government Document Book
  8. 8
    Comparison of methods for computing streamflow statistics for Pennsylvania streams /
    by Ehlke, Marla H.
    Published 1999
    Government Document Book
  9. 9
    Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania /
    by Lindsey, Bruce D., 1962-
    Published 1999
    Government Document Book
  10. 10
    Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania /
    by Fleeger, Gary M.
    Published 1999
    Government Document Book
  11. 11
    Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania /
    by Low, Dennis J. (Dennis James)
    Published 1999
    Government Document Book
  12. 12
    Ground water in southeastern Pennsylvania /
    by Hall, George Martin, 1891-1941
    Published 1934
    Book
  13. 13
    Ground water in northwestern Pennsylvania /
    Book
  14. 14
    Ground water in northeastern Pennsylvania /
    Book
  15. 15
    Ground-water resources of Pennsylvania /
    Book
  16. 16
    Ground water in southwestern Pennsylvania /
    Book
  17. 17
    Ground water for air conditioning at Pittsburgh, Pennsylvania /
    by Van Tuyl, Donald Wells, 1917-
    Published 1951
    Book
  18. 18
    Geology and mineral resources of Adams County, Pennsylvania /
    Book
  19. 19
    Geology and land use in eastern Washington County, Pennsylvania /
    Book
  20. 20
    Greater Pittsburgh region properties and uses of clays and shales /
    by O'Neill, Bernard J.
    Published 1976
    Book
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