@misc{indiciae49058a147f80,
  title = {Progress report, chemical quality of the surface waters in the Loup River basin, Nebraska},
  author = {John G. Connor},
  year = {1951},
  doi = {10.3133/cir107},
  url = {https://pubs.usgs.gov/publication/cir107},
  note = {Source identifier: cir107}
}