TY - RPRT TI - Potentiometric surface of the Floridan Aquifer, May 1975; well-field pumpage; and selected hydrographs, Hillsborough County, Florida AU - L. R. Mills AU - A. D. Duerr AU - Anthony Buono PY - 1975 DO - 10.3133/ofr75618 UR - https://pubs.usgs.gov/publication/ofr75618 ID - ofr75618 ER -