@misc{indiciae632650c4b29d,
  title = {Chemical analyses of surface water in Illinois, 1975-77--Volume I, Des Plaines River basin and Lake Michigan},
  author = {David Grason and R. W. Healy},
  year = {1979},
  doi = {10.3133/wri7923},
  url = {https://pubs.usgs.gov/publication/wri7923},
  note = {Source identifier: wri7923}
}