@misc{indiciae0872d7427d76,
  title = {Quality of ground water at selected sites in the upper Mahoning Creek Basin, Pennsylvania},
  author = {Michael J. Langland},
  year = {1996},
  doi = {10.3133/fs17696},
  url = {https://pubs.usgs.gov/publication/fs17696},
  note = {Source identifier: fs17696}
}