@misc{indiciae339a0f542184,
  title = {Global stocks of selected mineral-based commodities},
  author = {David R. Wilburn and Donald I. Bleiwas and Nick A. Karl},
  year = {2016},
  doi = {10.3133/sir20165152},
  url = {https://pubs.usgs.gov/publication/sir20165152},
  note = {Source identifier: sir20165152}
}