@misc{indiciaea068c1a01e22,
  title = {Preliminary materials map of the Chester quadrangle, Hampshire and Hampden Counties, Massachusetts},
  author = {George William Holmes},
  year = {1967},
  doi = {10.3133/ofr67117},
  url = {https://pubs.usgs.gov/publication/ofr67117},
  note = {Source identifier: ofr67117}
}