@misc{indiciae7ee935e2210a,
  title = {Geologic map of the Worthington quadrangle, Hampshire and Berkshire Counties, Massachusetts},
  author = {Norman L. Hatch},
  year = {1969},
  doi = {10.3133/gq857},
  url = {https://pubs.usgs.gov/publication/gq857},
  note = {Source identifier: gq857}
}