TY - RPRT TI - Tritium analyses of water in the Mississippi River alluvial aquifer in northwestern Mississippi, August 1991 AU - Larry J. Slack AU - W. T. Oakley PY - 1992 DO - 10.3133/ofr9275 UR - https://pubs.usgs.gov/publication/ofr9275 ID - ofr9275 ER -