@misc{indiciaeb1c56521f193,
  title = {Relations of changes in wastewater-treatment practices to changes in stream-water quality during 1978-88 in the Chicago area, Illinois, and implications for regional and national water-quality assessments},
  author = {P. J. Terrio},
  year = {1994},
  doi = {10.3133/wri934188},
  url = {https://pubs.usgs.gov/publication/wri934188},
  note = {Source identifier: wri934188}
}