TY  - RPRT
TI  - Hydrochemical Regions of the Glacial Aquifer System, Northern United States, and Their Environmental and Water-Quality Characteristics
AU  - Terri Arnold
AU  - Kelly L. Warner
AU  - George E. Groschen
AU  - James P. Caldwell
AU  - Stephen J. Kalkhoff
PY  - 2008
DO  - 10.3133/sir20085015
UR  - https://pubs.usgs.gov/publication/sir20085015
ID  - sir20085015
ER  -