@misc{indiciae42238037f629,
  title = {Workshop 2: Biogeochemistry in mineral exploration},
  author = {J. A. Erdman},
  year = {1984},
  doi = {10.1016/0375-6742(84)90039-6},
  url = {https://pubs.usgs.gov/publication/70013940},
  note = {Source identifier: 70013940}
}