@misc{indiciaefce1c594cec2,
  title = {Surficial geologic map of the Winsted quadrangle, Litchfield and Hartford Counties, Connecticut},
  author = {Charles Reynolds Warren},
  year = {1970},
  doi = {10.3133/gq871},
  url = {https://pubs.usgs.gov/publication/gq871},
  note = {Source identifier: gq871}
}