@misc{indiciaeacccd01b8d62,
  title = {U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia},
  author = {C. A. Hodges and D. P. Cox and D.A. Singer and J. E. Case and B. R. Berger and J. P. Albers},
  year = {1984},
  doi = {10.3133/ofr84345},
  url = {https://pubs.usgs.gov/publication/ofr84345},
  note = {Source identifier: ofr84345}
}