TY  - RPRT
TI  - Ground-water resources and geology of Niobrara County, Wyoming, with a section on chemical quality of the ground water
AU  - Harold A. Whitcomb
AU  - T. Ray Cummings
PY  - 1965
DO  - 10.3133/wsp1788
UR  - https://pubs.usgs.gov/publication/wsp1788
ID  - wsp1788
ER  -