@misc{indiciae605b5ef346da,
  title = {USGS Branch of Geochemistry, sample submittal manual, fourth edition},
  author = {C.M. Murphy and R.V. Mendes and S.T. Smith},
  year = {1993},
  doi = {10.3133/ofr93533},
  url = {https://pubs.usgs.gov/publication/ofr93533},
  note = {Source identifier: ofr93533}
}