@misc{indiciae908de7bf179b,
  title = {World nonbauxite aluminum resources; alunite},
  author = {R.B. Hall},
  year = {1978},
  doi = {10.3133/pp1076a},
  url = {https://pubs.usgs.gov/publication/pp1076A},
  note = {Source identifier: pp1076A}
}