@misc{indiciaed96fad04385e,
  title = {Economic drivers of mineral supply},
  author = {Lorie A. Wagner and Daniel E. Sullivan and John L. Sznopek},
  year = {2003},
  doi = {10.3133/ofr02335},
  url = {https://pubs.usgs.gov/publication/ofr02335},
  note = {Source identifier: ofr02335}
}