@misc{indiciaec8ddffeebcc9,
  title = {Chemical analyses of surface water in Illinois, 1958–74—Volume I, Des Plaines River basin and Lake Michigan},
  author = {R. W. Healy and L.G. Toler},
  year = {1978},
  doi = {10.3133/wri7822},
  url = {https://pubs.usgs.gov/publication/wri7822},
  note = {Source identifier: wri7822}
}