Hydrogeologic framework for characterization and occurrence of confined and unconfined aquifers in quaternary sediments in the glaciated conterminous United States—A digital map compilation and database
Haj, Adel E. ahaj@usgs.gov,Soller, David R. drsoller@usgs.gov,Reddy, James E.,et al. Hydrogeologic framework for characterization and occurrence of confined and unconfined aquifers in quaternary sediments in the glaciated conterminous United States—A digital map compilation and database. 2018-01-01.