@misc{indiciae9e7f6b22e252,
  title = {Methods of computation for estimating geochemical abundance},
  author = {A.T. Miesch},
  year = {1967},
  doi = {10.3133/pp574b},
  url = {https://pubs.usgs.gov/publication/pp574B},
  note = {Source identifier: pp574B}
}