@misc{indiciae7e0341d26c99,
  title = {Preliminary geologic map and sections of the Kunkletown 7 1/2-minute quadrangle, Pennsylvania},
  author = {Jack Burton Epstein and William D. Sevon},
  year = {1978},
  doi = {10.3133/ofr78392},
  url = {https://pubs.usgs.gov/publication/ofr78392},
  note = {Source identifier: ofr78392}
}