@misc{indiciaec8a49fc04204,
  title = {Bedrock geologic map of the Plainfield quadrangle, Windham and New London Counties, Connecticut},
  author = {Helen Roberta Dixon},
  year = {1965},
  doi = {10.3133/gq481},
  url = {https://pubs.usgs.gov/publication/gq481},
  note = {Source identifier: gq481}
}