@misc{indiciae52126361df55,
  title = {Effects of coal-mine discharges on the quality of the Stonycreek River and its tributaries, Somerset and Cambria counties, Pennsylvania},
  author = {Donald R. Williams and James I. Sams and Mary E. Mulkerrin},
  year = {1996},
  doi = {10.3133/wri964133},
  url = {https://pubs.usgs.gov/publication/wri964133},
  note = {Source identifier: wri964133}
}