TY - RPRT TI - Estimates of groundwater age from till and carbonate bedrock hydrogeologic units at Jefferson Proving Ground, Southeastern Indiana, 2007-08 AU - Paul M. Buszka AU - David C. Lampe AU - Amanda L. Egler PY - 2010 DO - 10.3133/sir20105178 UR - https://pubs.usgs.gov/publication/sir20105178 ID - sir20105178 ER -