TY - RPRT TI - Potentiometric surface of the lower part of the Magothy Aquifer in March 1972, Long Island, New York AU - Ellis Koch AU - E. J. Koszalka PY - 1973 DO - 10.3133/ofr73147 UR - https://pubs.usgs.gov/publication/ofr73147 ID - ofr73147 ER -