@misc{indiciae870ff44f67af,
  title = {Hydraulic characteristics of, and ground-water flow in, coal-bearing rocks of southwestern Virginia},
  author = {George E. Harlow and Gary D. LeCain},
  year = {1991},
  doi = {10.3133/ofr91250},
  url = {https://pubs.usgs.gov/publication/ofr91250},
  note = {Source identifier: ofr91250}
}