@misc{indiciae5bd1d45149e6,
  title = {A statistical analysis of the quality of surface water in Nebraska},
  author = {Richard A. Engberg},
  year = {1983},
  doi = {10.3133/wsp2179},
  url = {https://pubs.usgs.gov/publication/wsp2179},
  note = {Source identifier: wsp2179}
}