TY  - RPRT
TI  - Water-resources activities of the U.S. Geological Survey in South Dakota; fiscal years 1989-90
AU  - E. M. Decker
PY  - 1991
DO  - 10.3133/ofr9191
UR  - https://pubs.usgs.gov/publication/ofr9191
ID  - ofr9191
ER  -