TY  - RPRT
TI  - Conceptual and numerical models of groundwater flow in the Ogallala aquifer in Gregory and Tripp Counties, South Dakota, water years 1985--2009
AU  - Kyle W. Davis
AU  - Larry D. Putnam
PY  - 2013
DO  - 10.3133/sir20135069
UR  - https://pubs.usgs.gov/publication/sir20135069
ID  - sir20135069
ER  -