@misc{indiciae4478aa2a000c,
  title = {Origin of the soft iron ores of Michigan},
  author = {H. L. James},
  year = {1953},
  doi = {10.2113/gsecongeo.48.8.726},
  url = {https://pubs.usgs.gov/publication/70221516},
  note = {Source identifier: 70221516}
}