@misc{indiciae5c12cb4c01ca,
  title = {Mineral deposits and occurrences in Connecticut, exclusive of clay, sand and gravel, and peat},
  author = {Nancy C. Pearre},
  year = {1957},
  doi = {10.3133/mr7},
  url = {https://pubs.usgs.gov/publication/mr7},
  note = {Source identifier: mr7}
}