Summary, ground-water resources of Allegheny County, Pennsylvania /

Summary ground-water resources of Washington County, Pennsylvania /
by: Newport, Thomas Gwyn, 1922-
Published: (1973)

Summary, ground-water resources of Butler County, Pennsylvania /
by: Poth, Charles W.
Published: (1973)

Summary ground-water resources of Clarion County, Pennsylvania /
by: Newport, Thomas Gwyn, 1922-
Published: (1973)

Summary ground-water resources of Luzerne County, Pennsylvania /
by: Newport, Thomas Gwyn, 1922-
Published: (1977)

Summary ground-water resources of Lancaster County, Pennsylvania /
by: Poth, Charles W.
Published: (1977)

Coal resources of Allegheny County, Pennsylvania : part 1, coal crop lines, mined-out areas, and structure contours /
Published: (1985)

Ground-water resources of Lackawanna County, Pennsylvania /
by: Hollowell, Jerrald R.
Published: (1975)

Ground-water resources of Beaver County, Pennsylvania /
by: Van Tuyl, Donald Wells, 1917-
Published: (1951)

Landmark architecture of Allegheny County, Pennsylvania /
by: Van Trump, James D. (James Denholm), 1908-1995
Published: (1967)

Environmental geology, Allegheny County and vicinity, Pennsylvania : description of a program and its results /
by: Briggs, Reginald P., 1929-2009
Published: (1977)

Occurrence and trends in the concentrations of fecal-indicator bacteria and the relation to field water-quality parameters in the Allegheny, Monongahela, and Ohio Rivers and selected tributaries, Allegheny County, Pennsylvania, 2001-09 /
by: Fulton, John W.
Published: (2016)

Ground-water resources of central and southern York County, Pennsylvania /
by: Lloyd, Orville B.
Published: (1977)

Summary groundwater resources of Perry County, Pennsylvania /
by: Royer, Denise W.
Published: (1984)

Summary groundwater resources of Lebanon County, Pennsylvania /
by: Royer, Denise W.
Published: (1983)

Environmental geology, Allegheny County and vicinity, Pennsylvania : description of a program and its results /
by: Briggs, Reginald P., 1929-2009
Published: (1977)

Applications of industrial protection to Allegheny County /
Published: (1982)

Ground-water resources of Pennsylvania /
by: Lohman, S. W. (Stanley William), 1907-1992
Published: (1941)

Groundwater resources of Erie County, Pennsylvania /
by: Richards, David B. (David Barton)
Published: (1987)

Groundwater resources of Delaware County, Pennsylvania /
by: Balmer, Wayne T.
Published: (1996)

Hydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter counties, Pennsylvania /
by: Williams, John H. (John Herbert), 1954-
Published: (1998)

Groundwater resources of Pike County, Pennsylvania /
by: Davis, Drew K.
Published: (1989)

Measuring and understanding economic interdependence in Allegheny County /
Published: (2004)

Geology and groundwater resources of northern Berks County, Pennsylvania /
by: Wood, Charles R.
Published: (1978)

Hydrology of the Martinsburg Formation in Lehigh and Northampton Counties, Pennsylvania /
by: Poth, Charles W.
Published: (1972)

Landsliding in Allegheny County, Pennsylvania /
by: Briggs, Reginald P., 1929-2009, et al.
Published: (1975)

Groundwater resources in the Cumberland and contiguous valleys of Franklin County, Pennsylvania /
by: Becher, Albert E.
Published: (1982)

Ground water in northeastern Pennsylvania /
by: Lohman, S. W. (Stanley William), 1907-1992
Published: (1937)

Ground water in northwestern Pennsylvania /
by: Leggette, R. M. (Ralph Maxwell), 1899-
Published: (1936)

Geohydrology and ground-water resources of Philadelphia, Pennsylvania /
by: Paulachok, Gary N.
Published: (1991)

McDonald and adjacent oil fields, Allegheny and Washington Counties, Pennsylvania.
Published: (1949)

Landslide susceptibility map of the Pittsburgh West quadrangle, Allegheny County, Pennsylvania /
by: Pomeroy, John S., 1929-
Published: (1977)

Ground water in southwestern Pennsylvania /
by: Piper, Arthur M. (Arthur Maine), 1898-1989
Published: (1933)

Government consolidation and economic development in Allegheny County and the city of Pittsburgh /
by: Archibald, Rae W.
Published: (2008)

Ground-water resources of the Loysville and Mifflintown quadrangles in south-central Pennsylvania /
by: Johnston, Herbert E.
Published: (1970)

Ground water in north-central Pennsylvania /
by: Lohman, S. W. (Stanley William), 1907-1992
Published: (1939)

Ground water in southeastern Pennsylvania /
by: Hall, George Martin, 1891-1941
Published: (1934)