TY - RPRT TI - Potentiometric surface of the Aquia Aquifer in southern Maryland during the Fall of 1986 AU - F. K. Mack AU - D. C. Andreasen AU - S. E. Curtin AU - J. C. Wheeler PY - 1987 DO - 10.3133/wri874214 UR - https://pubs.usgs.gov/publication/wri874214 ID - wri874214 ER -