TY - RPRT TI - Water Levels and Selected Water-Quality Conditions in the Sparta-Memphis Aquifer (Middle Claiborne Aquifer) in Arkansas, Spring-Summer 2007 AU - T. P. Schrader PY - 2009 DO - 10.3133/sir20095207 UR - https://pubs.usgs.gov/publication/sir20095207 ID - sir20095207 ER -