TY - RPRT TI - Difference between the potentiometric surfaces of the Magothy Aquifer in Fall of 1975 and Fall of 1986 in southern Maryland AU - F. K. Mack AU - D. C. Andreasen AU - S. E. Curtin AU - J. C. Wheeler PY - 1987 DO - 10.3133/wri874217 UR - https://pubs.usgs.gov/publication/wri874217 ID - wri874217 ER -