TY  - RPRT
TI  - Designation of principal water-supply aquifers in Minnesota
AU  - D. G. Adolphson
AU  - J. F. Ruhl
AU  - R. J. Wolf
PY  - 1981
DO  - 10.3133/wri8151
UR  - https://pubs.usgs.gov/publication/wri8151
ID  - wri8151
ER  -