TY  - RPRT
TI  - Geohydrology of bedrock aquifers in the Northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming
AU  - J. S. Downey
PY  - 1986
DO  - 10.3133/pp1402e
UR  - https://pubs.usgs.gov/publication/pp1402E
ID  - pp1402E
ER  -