@misc{indiciae69b880f39d1f,
  title = {International Strategic Minerals Inventory summary report; manganese},
  author = {DeYoung and David M. Sutphin and William F. Cannon},
  year = {1984},
  doi = {10.3133/cir930a},
  url = {https://pubs.usgs.gov/publication/cir930A},
  note = {Source identifier: cir930A}
}