@misc{indiciae5d358c0acfc7,
  title = {Petrography, geochemistry and palynology of the Stockton coal bed (Middle Pennsylvanian), Martin County, Kentucky},
  author = {J.C. Hower and C.F. Eble and B.S. Pierce},
  year = {1996},
  doi = {10.1016/s0166-5162(96)00017-1},
  url = {https://pubs.usgs.gov/publication/70018200},
  note = {Source identifier: 70018200}
}