@misc{indiciaefd49d99be751,
  title = {Field investigation of mine waters in the northern anthracite field, Pennsylvania},
  author = {Ivan Barnes and W.T. Stuart and D.W. Fisher},
  year = {1964},
  doi = {10.3133/pp473b},
  url = {https://pubs.usgs.gov/publication/pp473B},
  note = {Source identifier: pp473B}
}