@misc{indiciae1a4ad214348e,
  title = {The mineral economy of Brazil--Economia mineral do Brasil},
  author = {Alfredo C. Gurmendi and Frederico Lopes Barboza and Charles H. Thorman},
  year = {1999},
  doi = {10.3133/ds53},
  url = {https://pubs.usgs.gov/publication/ds53},
  note = {Source identifier: ds53}
}