@misc{indiciae86fbc05441ba,
  title = {Precambrian iron-formations of the United States},
  author = {R. W. Bayley and H. L. James},
  year = {1973},
  doi = {10.2113/gsecongeo.68.7.934},
  url = {https://pubs.usgs.gov/publication/70241232},
  note = {Source identifier: 70241232}
}