@misc{indiciae0fa152b4414a,
  title = {Geology and mineral resources of the Lehighton and Palmerton quadrangles, Carbon and Northampton Counties, Pennsylvania},
  author = {Jack B. Epstein and W. D. Sevon and J. Douglas Glaeser},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70231176},
  note = {Source identifier: 70231176}
}