TY  - RPRT
TI  - South Dakota ground-water quality
AU  - N.C. Koch
AU  - S.J. Lawrence
AU  - Jeanne Goodman
AU  - S.M. Pirner
PY  - 1987
DO  - 10.3133/ofr87752
UR  - https://pubs.usgs.gov/publication/ofr87752
ID  - ofr87752
ER  -