@misc{indiciaef6dcf5ced11a,
  title = {Preliminary report on the geology and underground water resources of the central Great Plains},
  author = {N. H. Darton},
  year = {1905},
  doi = {10.3133/pp32},
  url = {https://pubs.usgs.gov/publication/pp32},
  note = {Source identifier: pp32}
}