@misc{indiciae3961e4db1bdd,
  title = {Geochemical data from Colombia; Part A, General discussion},
  author = {Greta J. Orris},
  year = {1996},
  doi = {10.3133/ofr96542a},
  url = {https://pubs.usgs.gov/publication/ofr96542A},
  note = {Source identifier: ofr96542A}
}