TY  - RPRT
TI  - Simulation of regional ground-water flow in the Cambrian-Ordovician aquifer system in the northern Midwest, United States: in Regional aquifer-system analysis
AU  - R.J. Mandle
AU  - A.L. Kontis
PY  - 1992
DO  - 10.3133/pp1405c
UR  - https://pubs.usgs.gov/publication/pp1405C
ID  - pp1405C
ER  -