@misc{indiciae781ccd761b74,
  title = {Abandoned mine drainage in the Swatara Creek Basin, southern anthracite coalfield, Pennsylvania, USA: 2. performance of treatment systems},
  author = {Charles A. Cravotta},
  year = {2010},
  doi = {10.1007/s10230-010-0113-5},
  url = {https://pubs.usgs.gov/publication/70155086},
  note = {Source identifier: 70155086}
}