@misc{indiciae89a78d173975,
  title = {Palynology of selected coal beds in the proposed Pennsylvanian System stratotype in West Virginia},
  author = {Robert M. Kosanke},
  year = {1984},
  doi = {10.3133/pp1318},
  url = {https://pubs.usgs.gov/publication/pp1318},
  note = {Source identifier: pp1318}
}