@misc{indiciaed53c0d66182e,
  title = {Petrography of the Athol quadrangle, Massachusetts},
  author = {Anita Louise Mook},
  year = {1967},
  doi = {10.3133/ofr68185},
  url = {https://pubs.usgs.gov/publication/ofr68185},
  note = {Source identifier: ofr68185}
}