@misc{indiciaecf25ce190c75,
  title = {Geology of the Washington West quadrangle, Pennsylvania},
  author = {Henry L. Berryhill and Vernon Emanuel Swanson},
  year = {1964},
  doi = {10.3133/gq283},
  url = {https://pubs.usgs.gov/publication/gq283},
  note = {Source identifier: gq283}
}