@misc{indiciae233bf8951947,
  title = {Geology and ground-water hydrology of the Lake Hefner area in Oklahoma County, Oklahoma},
  author = {P.E. Dennis},
  year = {1950},
  doi = {10.3133/ofr5068},
  url = {https://pubs.usgs.gov/publication/ofr5068},
  note = {Source identifier: ofr5068}
}