TY  - RPRT
TI  - Ground water in the Crow Creek-Sand Lake area, Brown and Marshall Counties, South Dakota
AU  - F. C. Koopman
PY  - 1957
DO  - 10.3133/wsp1425
UR  - https://pubs.usgs.gov/publication/wsp1425
ID  - wsp1425
ER  -