@misc{indiciae0d7bd64423c1,
  title = {Geochemical survey to determine water-quality characteristics of the Big Sioux Aquifer in eastern South Dakota},
  author = {N.F. Leibbrand},
  year = {1985},
  doi = {10.3133/wri854069},
  url = {https://pubs.usgs.gov/publication/wri854069},
  note = {Source identifier: wri854069}
}