@misc{indiciaeb946ff6fabf6,
  title = {Preliminary materials map of the Becket quadrangle, Massachusetts},
  author = {George William Holmes},
  year = {1967},
  doi = {10.3133/ofr67116},
  url = {https://pubs.usgs.gov/publication/ofr67116},
  note = {Source identifier: ofr67116}
}