TY - RPRT TI - Potentiometric surface of Floridan Aquifer, Southwest Florida Water Management District and adjacent areas, May 1977 AU - Paul D. Ryder AU - C. P. Laughlin AU - L. R. Mills PY - 1977 DO - 10.3133/ofr77552 UR - https://pubs.usgs.gov/publication/ofr77552 ID - ofr77552 ER -