TY - RPRT TI - Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 1986 AU - B. R. Lewelling AU - Roger G. Belles PY - 1986 DO - 10.3133/ofr86603 UR - https://pubs.usgs.gov/publication/ofr86603 ID - ofr86603 ER -