Hydrology and the effects of selected agricultural best-management practices in the Bald Eagle Creek watershed, York County, Pennsylvania, prior to and during nutrient management : water-quality study for the Chesapeake Bay Program / by Michael J. Langland and David K. Fishel.
"Prepared in cooperation with the Susquehanna River Basin Commission and the Pennsylvania Department of Enviromental Resources, Bureau of Soil and Wat...
"Prepared in cooperation with the Susquehanna River Basin Commission and the Pennsylvania Department of Enviromental Resources, Bureau of Soil and Water Conservation."