@misc{indiciaef38512ed3ba1,
  title = {Dolomite in the vicinity of Lee, Massachisetts, as an available source of metallic magnesium},
  author = {Earl T. Apfel},
  year = {1945},
  doi = {10.3133/ofr4572},
  url = {https://pubs.usgs.gov/publication/ofr4572},
  note = {Source identifier: ofr4572}
}