TY - RPRT TI - Potentiometric surface of the upper Floridan aquifer in the Suwannee River Water Management District, Florida, May 1990 AU - Paul E. Meadows PY - 1991 DO - 10.3133/ofr90582 UR - https://pubs.usgs.gov/publication/ofr90582 ID - ofr90582 ER -