TY - RPRT TI - Chemical and isotopic composition and potential for contamination of water in the upper Floridan Aquifer, west-central Florida, 1986-89 AU - Amy Swancar AU - C. B. Hutchinson PY - 1992 DO - 10.3133/ofr9247 UR - https://pubs.usgs.gov/publication/ofr9247 ID - ofr9247 ER -