@misc{indiciae5cce3c1e8cde,
  title = {Geochemical survey of waters of Missouri},
  author = {G. L. Feder},
  year = {1979},
  doi = {10.3133/pp954e},
  url = {https://pubs.usgs.gov/publication/pp954E},
  note = {Source identifier: pp954E}
}