@misc{indiciaeaa46b02015bf,
  title = {Lead and zinc resources of Brazil},
  author = {Max Gregg White and Raymond H. Nagell},
  year = {1975},
  doi = {10.3133/ofr7549},
  url = {https://pubs.usgs.gov/publication/ofr7549},
  note = {Source identifier: ofr7549}
}