@misc{indiciaeb288ad866b97,
  title = {Preliminary bedrock geologic map of the Ashley Falls quadrangle, Massachusetts and Connecticut},
  author = {Nicholas M. Ratcliffe and Henry Robert Burger},
  year = {1975},
  doi = {10.3133/ofr75148},
  url = {https://pubs.usgs.gov/publication/ofr75148},
  note = {Source identifier: ofr75148}
}