@misc{indiciae8501d6ead838,
  title = {Emery deposits near Chester, Massachusetts},
  author = {E.T. Apfel},
  year = {1945},
  doi = {10.3133/ofr4558},
  url = {https://pubs.usgs.gov/publication/ofr4558},
  note = {Source identifier: ofr4558}
}