@misc{indiciaecc788505fc47,
  title = {Spodumene deposits in the Leominster-Sterling Area, Massachusetts},
  author = {M.P. Billings and C.W. Wolfe},
  year = {1944},
  doi = {10.3133/ofr4588},
  url = {https://pubs.usgs.gov/publication/ofr4588},
  note = {Source identifier: ofr4588}
}