@misc{indiciaece7547a8574d,
  title = {Iron deposits of the congonhas district, minas Gerais, Brazil},
  author = {P. W. Guild},
  year = {1953},
  doi = {10.2113/gsecongeo.48.8.639},
  url = {https://pubs.usgs.gov/publication/70207421},
  note = {Source identifier: 70207421}
}