Summary Ground Water Resources Of Armstrong County Pennsylvania
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Water-resources Activities of the U.S. Geological Survey in Pennsylvania, 1986-87
| Author | : Robert E. Helm |
| Publisher | : |
| Total Pages | : 132 |
| Release | : 1987 |
| Genre | : Water resources development |
| ISBN | : |
Water-resources Activities of the U.S. Geological Survey in Pennsylvania, 1988-89
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 92 |
| Release | : 1989 |
| Genre | : Water quality management |
| ISBN | : |
Geological Survey Water-supply Paper
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 226 |
| Release | : 1974 |
| Genre | : Floods |
| ISBN | : |
Ground-water Levels in the United States
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 222 |
| Release | : 1974 |
| Genre | : Groundwater |
| ISBN | : |
