@misc{indiciae1dd550cd05b2,
  title = {Bedrock geologic map of the anthracite-bearing strata in the northwestern part of the Wilkes-Barre East Quadrangle, Pennsylvania},
  author = {M. J. Bergin},
  year = {1973},
  doi = {10.3133/i753},
  url = {https://pubs.usgs.gov/publication/i753},
  note = {Source identifier: i753}
}