@misc{indiciae75ad3e186a48,
  title = {Surficial geologic map of the Hampden quadrangle, Massachusetts and Connecticut},
  author = {C. T. Hildreth and Roger B. Colton},
  year = {1982},
  doi = {10.3133/gq1544},
  url = {https://pubs.usgs.gov/publication/gq1544},
  note = {Source identifier: gq1544}
}