@misc{indiciaea9abeecd2c96,
  title = {Generalized configuration of the base of the High Plains Aquifer in Kansas},
  author = {Kenneth R. Watts and Lloyd E. Stullken},
  year = {1985},
  doi = {10.3133/ofr81344},
  url = {https://pubs.usgs.gov/publication/ofr81344},
  note = {Source identifier: ofr81344}
}