@misc{indiciae45629b679dd7,
  title = {Geology and coal deposits of the Hymera quadrangle, Sullivan County, Indiana},
  author = {Charles Eugene Wier},
  year = {1954},
  doi = {10.3133/coal16},
  url = {https://pubs.usgs.gov/publication/coal16},
  note = {Source identifier: coal16}
}