@misc{indiciaed96cd2e42034,
  title = {Ground-water quality assessment of the central Oklahoma aquifer, Oklahoma: results of investigations},
  author = {Scott C. Christenson and J.S. Havens},
  year = {1994},
  doi = {10.3133/ofr93441},
  url = {https://pubs.usgs.gov/publication/ofr93441},
  note = {Source identifier: ofr93441}
}