@misc{indiciaed6c9d1c20d2e,
  title = {Saturated thickness of the High Plains regional aquifer in 1980, northwestern Oklahoma},
  author = {John S. Havens},
  year = {1982},
  doi = {10.3133/ofr82760},
  url = {https://pubs.usgs.gov/publication/ofr82760},
  note = {Source identifier: ofr82760}
}