TY - RPRT TI - Evaluation of the ground-water resources of the lower Susquehanna River basin, Pennsylvania and Maryland AU - James M. Gerhart AU - George J. Lazorchick PY - 1988 DO - 10.3133/wsp2284 UR - https://pubs.usgs.gov/publication/wsp2284 ID - wsp2284 ER -