@misc{indiciae2c34014e1b57,
  title = {Lower Pennsylvanian species of Mariopteris, Eremopteris, Diplothmema, and Aneimites from the Appalachian region (a posthumous work)},
  author = {David White},
  year = {1943},
  doi = {10.3133/pp197c},
  url = {https://pubs.usgs.gov/publication/pp197C},
  note = {Source identifier: pp197C}
}