TY  - RPRT
TI  - HPBEDROCK; bedrock formations underlying the High Plains Aquifer
AU  - Joshua M. Torres
AU  - David W. Litke
AU  - Sharon L. Qi
PY  - 1999
DO  - 10.3133/ofr99214
UR  - https://pubs.usgs.gov/publication/ofr99214
ID  - ofr99214
ER  -