@misc{indiciaed85da974fbf1,
  title = {Geologic map of the Wind Gap quadrangle, Northampton and Monroe Counties, Pennsylvania},
  author = {Jack Burton Epstein},
  year = {1990},
  doi = {10.3133/gq1645},
  url = {https://pubs.usgs.gov/publication/gq1645},
  note = {Source identifier: gq1645}
}