@misc{indiciaebadc48202545,
  title = {Preliminary geologic map of the Becket quadrangle, Berkshire, Hampshire, and Hampden Counties, Massachusetts},
  author = {S. A. Norton},
  year = {1958},
  doi = {10.3133/ofr7492},
  url = {https://pubs.usgs.gov/publication/ofr7492},
  note = {Source identifier: ofr7492}
}