@misc{indiciaef329c427f360,
  title = {Determination of arsenic in geological materials by x-ray fluorescence spectrometry after solvent extraction and deposition on a filter},
  author = {A.E. Hubert},
  year = {1983},
  doi = {10.1016/0039-9140(83)80223-9},
  url = {https://pubs.usgs.gov/publication/70011317},
  note = {Source identifier: 70011317}
}