@misc{indiciae6f47a85404b5,
  title = {Sources of ores of the ferroalloy metals},
  author = {E. F. Burchard},
  year = {1933},
  doi = {10.1021/ed010p359},
  url = {https://pubs.usgs.gov/publication/70010527},
  note = {Source identifier: 70010527}
}