TY - RPRT TI - Potentiometric surface of the Ozark aquifer in northern Arkansas, 2010 AU - John B. Czarnecki AU - Aaron L. Pugh AU - Joshua M. Blackstock PY - 2014 DO - 10.3133/sir20145013 UR - https://pubs.usgs.gov/publication/sir20145013 ID - sir20145013 ER -