@misc{indiciaead2b354f02a3,
  title = {Palynology of late Middle Pennsylvanian coal beds in the Appalachian Basin},
  author = {C.F. Eble},
  year = {2002},
  doi = {10.1016/s0166-5162(02)00114-3},
  url = {https://pubs.usgs.gov/publication/70024666},
  note = {Source identifier: 70024666}
}