TY - RPRT TI - Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida, May 2003 AU - Robert Allen Blanchard AU - A.V. Seidenfeld AU - David S. McCulloch PY - 2004 DO - 10.3133/ofr20041079 UR - https://pubs.usgs.gov/publication/ofr20041079 ID - ofr20041079 ER -