TY - RPRT TI - Potentiometric surface and areas of artesian flow, May 1969, and change of potentiometric surface 1964 to 1969, Floridan aquifer, Southwest Florida Water Management District, Florida AU - Joseph W. Stewart PY - 1971 DO - 10.3133/ha440 UR - https://pubs.usgs.gov/publication/ha440 ID - ha440 ER -