@misc{indiciae44b961849238,
  title = {Geology of anthracite in the southeastern part of the Mount Carmel quadrangle, Pennsylvania},
  author = {Howard Eugene Rothrock and H. C. Wagner and B.R. Haley and H. H. Arndt},
  year = {1953},
  doi = {10.3133/coal12},
  url = {https://pubs.usgs.gov/publication/coal12},
  note = {Source identifier: coal12}
}