TY  - RPRT
TI  - Data-base system for northern Midwest regional aquifer-system analysis
AU  - A.L. Kontis
AU  - Richard J. Mandle
PY  - 1980
DO  - 10.3133/wri80104
UR  - https://pubs.usgs.gov/publication/wri80104
ID  - wri80104
ER  -