@misc{indiciaeca4c35ffa507,
  title = {International strategic minerals inventory summary report; cobalt},
  author = {R.N. Crockett and G.R. Chapman and M.D. Forrest},
  year = {1987},
  doi = {10.3133/cir930f},
  url = {https://pubs.usgs.gov/publication/cir930F},
  note = {Source identifier: cir930F}
}