Ground-water resources of the lower Apalachicola-Chattahoochee-Flint River Basin in parts of Alabama, Florida, and Georgia : Subarea 4 of the Apalachicola-Chattahoochee-Flint and Alabama-Coosa-TallaPoosa River basins / - Torak, L. J. (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1996)