@misc{indiciaec8754e56dbaf,
  title = {A report on site visits to some of the largest tin deposits in Brazil, March 11-25, 1988},
  author = {Charles H. Thorman and Lawrence J. Drew},
  year = {1988},
  doi = {10.3133/ofr88594},
  url = {https://pubs.usgs.gov/publication/ofr88594},
  note = {Source identifier: ofr88594}
}