TY - RPRT TI - Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2002 AU - Robert Allen Blanchard AU - L. A. Knochenmus AU - A.V. Seidenfeld AU - D. S. McCulloch PY - 2003 DO - 10.3133/ofr03223 UR - https://pubs.usgs.gov/publication/ofr03223 ID - ofr03223 ER -