TY - RPRT TI - Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2004 AU - Robert Allen Blanchard AU - A.V. Seidenfeld PY - 2005 DO - 10.3133/ofr20051222 UR - https://pubs.usgs.gov/publication/ofr20051222 ID - ofr20051222 ER -