@misc{indiciaeb2e11200184b,
  title = {Geologic and ground-water reconnaissance of the Loup River drainage basin, Nebraska, with a section on Chemical quality of the water},
  author = {Richard T. Sniegocki and R.H. Langford},
  year = {1959},
  doi = {10.3133/wsp1493},
  url = {https://pubs.usgs.gov/publication/wsp1493},
  note = {Source identifier: wsp1493}
}