@misc{indiciae2e1c254f204e,
  title = {Geology of the Devonian black shales of the Appalachian Basin},
  author = {John B. Roen},
  year = {1984},
  doi = {10.1016/0146-6380(84)90011-1},
  url = {https://pubs.usgs.gov/publication/70013888},
  note = {Source identifier: 70013888}
}