@misc{indiciae3d5fad921e6e,
  title = {Ground-water levels in observation wells in Oklahoma, 1965-66},
  author = {D.L. Hart},
  year = {1967},
  doi = {10.3133/ofr67285},
  url = {https://pubs.usgs.gov/publication/ofr67285},
  note = {Source identifier: ofr67285}
}