@misc{indiciae932bdb71bf29,
  title = {Contamination of rock samples during grinding as determined spectrographically},
  author = {A.T. Myers and Paul R. Barnett},
  year = {1952},
  doi = {10.3133/tei179},
  url = {https://pubs.usgs.gov/publication/tei179},
  note = {Source identifier: tei179}
}