@misc{indiciae75dd5b16c834,
  title = {Channel-fill coal beds along the western margin of the Eastern Kentucky Coal Field},
  author = {C.F. Eble and S.F. Greb},
  year = {1997},
  doi = {10.1016/s0166-5162(96)00048-1},
  url = {https://pubs.usgs.gov/publication/70019877},
  note = {Source identifier: 70019877}
}