TY  - RPRT
TI  - The regional aquifer system underlying the Northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming; summary
AU  - J. S. Downey
AU  - G.A. Dinwiddie
PY  - 1988
DO  - 10.3133/pp1402a
UR  - https://pubs.usgs.gov/publication/pp1402A
ID  - pp1402A
ER  -