@misc{indiciaecf1eb9db785d,
  title = {Preliminary materials map, Stockbridge quadrangle, Massachusetts},
  author = {George William Holmes},
  year = {1964},
  doi = {10.3133/ofr6485},
  url = {https://pubs.usgs.gov/publication/ofr6485},
  note = {Source identifier: ofr6485}
}