TY - RPRT TI - Louisiana ground-water map no.18, potentiometric surface, 2003, Jasper Aquifer System in west-central Louisiana AU - Jeffrey A. Brantly AU - Ronald C. Seanor PY - 2005 DO - 10.3133/sim2861 UR - https://pubs.usgs.gov/publication/sim2861 ID - sim2861 ER -