@misc{indiciae677b3b374706,
  title = {Surficial geologic map of the Roxbury quadrangle, Litchfield and New Haven Counties, Connecticut},
  author = {Harold E. Malde},
  year = {1967},
  doi = {10.3133/gq611},
  url = {https://pubs.usgs.gov/publication/gq611},
  note = {Source identifier: gq611}
}