TY  - RPRT
TI  - Records of water levels in the Big Sioux Aquifer, Minnehaha County, South Dakota, 1981
AU  - Douglas R. Winter
PY  - 1983
DO  - 10.3133/ofr821020
UR  - https://pubs.usgs.gov/publication/ofr821020
ID  - ofr821020
ER  -