@misc{indiciae7ad779f96898,
  title = {Mineral deposits of the territory of Amapa, Brazil - gold, tantalite and diamonds near Vila Santa Maria},
  author = {Montis Ruhl Klepper and Victor Dequech},
  year = {1967},
  doi = {10.3133/ofr67131},
  url = {https://pubs.usgs.gov/publication/ofr67131},
  note = {Source identifier: ofr67131}
}