@misc{indiciaed9bf369e0321,
  title = {Hydrology of the abandoned coal mines in the Wyoming Valley, Pennsylvania},
  author = {Jerrald R. Hollowell},
  year = {1974},
  doi = {10.3133/ofr74237},
  url = {https://pubs.usgs.gov/publication/ofr74237},
  note = {Source identifier: ofr74237}
}