@misc{indiciae0d30bfe26744,
  title = {Geologic map of the Bangor quadrangle, Pennsylvania-New Jersey},
  author = {Robert E. Davis and Avery Ala Drake and Jack Burton Epstein},
  year = {1967},
  doi = {10.3133/gq665},
  url = {https://pubs.usgs.gov/publication/gq665},
  note = {Source identifier: gq665}
}