@misc{indiciaefc9f9658c702,
  title = {Contour map of the bedrock surface, Tariffville quadrangle, Connecticut-Massachusetts},
  author = {E. H. Handman},
  year = {1974},
  doi = {10.3133/mf512c},
  url = {https://pubs.usgs.gov/publication/mf512C},
  note = {Source identifier: mf512C}
}