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2. Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86
3. Effects of channel modifications on the hydrology of Chicod Creek basin, North Carolina, 1975-87
4. The effects of coal mining on the hydrologic environment of selected stream basins in southern West Virginia
5. Effects of impoundments on water quality of streams in the Coteau des Prairies--upper Minnesota River basin
6. Effects of land disposal of municipal sewage sludge on soil, streambed sediment, and ground- and surface-water quality at a site near Denver, Colorado
7. Effects of land-management practices on sediment yields in northeastern Guilford County, North Carolina
8. The effects of multipurpose reservoirs on the water temperature of the North and South Santiam rivers, Oregon
9. Effects of nitrogen and phosphorus additions on phytoplankton productivity and chlorophyll a in a subtropical estuary, Charlotte Harbor, Florida
10. Effects of oil production on water resources in the Kentucky River basin, Kentucky
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