@misc{indiciae200212f8e0f1,
  title = {Effects of coal fly-ash disposal on water quality in and around the Indiana Dunes National Lakeshore, Indiana},
  author = {Mark A. Hardy},
  year = {1981},
  doi = {10.3133/wri8116},
  url = {https://pubs.usgs.gov/publication/wri8116},
  note = {Source identifier: wri8116}
}