TY - RPRT TI - Potentiometric surface of the Magothy Aquifer in southern Maryland, September 1990 AU - Frederick K. Mack AU - S. E. Curtin AU - D. C. Andreasen AU - J. C. Wheeler PY - 1992 DO - 10.3133/ofr92460 UR - https://pubs.usgs.gov/publication/ofr92460 ID - ofr92460 ER -