1. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : description and water quality of the Little Conestoga Creek Headwaters prior to the implementation of nutrient management Author/Creator: Fishel, David K., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
2. Hydrology and the hypothetical effects of reducing nutrient applications on water quality in the Bald Eagle Creek Headwaters, southeastern Pennsylvania prior to implementation of agricultural best-management practices Author/Creator: Fishel, David K., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
3. Preimpoundment hydrologic conditions in the Swatara Creek (1981-84) and estimated postimpoundment water quality in and downstream from the planned Swatara State Park Reservoir, Lebanon and Schuylkill counties, Pennsylvania Author/Creator: Fishel, David K., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading
4. Water-quality and chemical loads of the Susquehanna River at Harrisburg, Pennsylvania, April 1980 to March 1981 Author/Creator: Fishel, David K., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading