@misc{indiciae76668ab72be8,
  title = {Map showing unconsolidated materials, Southwick quadrangle, Massachusetts-Connecticut},
  author = {Robert W. Schnabel},
  year = {1974},
  doi = {10.3133/mf606a},
  url = {https://pubs.usgs.gov/publication/mf606A},
  note = {Source identifier: mf606A}
}