@misc{indiciae989bd74ed04b,
  title = {Water resources and the hydrologic effects of coal mining in Washington County, Pennsylvania},
  author = {Donald R. Williams and John K. Felbinger and Paul J. Squillace},
  year = {1993},
  doi = {10.3133/ofr89620},
  url = {https://pubs.usgs.gov/publication/ofr89620},
  note = {Source identifier: ofr89620}
}