TY  - RPRT
TI  - Ground-water resources of the lower Niobrara River and Ponca Creek basins, Nebraska and South Dakota
AU  - Thomas G. Newport
AU  - Robert A. Krieger
PY  - 1959
DO  - 10.3133/wsp1460g
UR  - https://pubs.usgs.gov/publication/wsp1460G
ID  - wsp1460G
ER  -