TY  - RPRT
TI  - Water-quality assessment of the Cambrian-Ordovician aquifer system in the northern Midwest, United States
AU  - John T. Wilson
PY  - 2012
DO  - 10.3133/sir20115229
UR  - https://pubs.usgs.gov/publication/sir20115229
ID  - sir20115229
ER  -