TY - RPRT TI - Potentiometric surface of the Magothy Aquifer in southern Maryland during September 1988 AU - Frederick K. Mack AU - David C. Andreasen AU - Stephen E. Curtin AU - Judith C. Wheeler PY - 1990 DO - 10.3133/wri904040 UR - https://pubs.usgs.gov/publication/wri904040 ID - wri904040 ER -