@misc{indiciae28c4aeef8375,
  title = {Chemical analyses of surface water in Illinois, 1975-77--Volume III, Ohio River tributaries and Mississippi River tributaries south of Illinois River basin},
  author = {David Grason and R. W. Healy},
  year = {1979},
  doi = {10.3133/wri7925},
  url = {https://pubs.usgs.gov/publication/wri7925},
  note = {Source identifier: wri7925}
}