@misc{indiciae14872edc859e,
  title = {Thrust-ridge paleodepositional model for the Upper Freeport coal bed and associated clastic facies, Upper Potomac coal field, Appalachian Basin, U.S.A.},
  author = {Edward S. Belt and P.C. Lyons},
  year = {1990},
  doi = {10.1016/0166-5162(89)90055-4},
  url = {https://pubs.usgs.gov/publication/70016418},
  note = {Source identifier: 70016418}
}