TY - RPRT TI - Simulation of ground-water flow in aquifers along the Susquehanna River in Columbia County, Pennsylvania AU - J.H. Williams AU - G.E. Senko PY - 1988 DO - 10.3133/wri854185 UR - https://pubs.usgs.gov/publication/wri854185 ID - wri854185 ER -