@misc{indiciae9ab74dd4dcf4,
  title = {The Crystal Falls iron-bearing district of Michigan},
  author = {Julius Morgan Clements and Henry Lloyd Smyth and William Shirley Bayley and Charles Richard Van Hise},
  year = {1899},
  doi = {10.3133/m36},
  url = {https://pubs.usgs.gov/publication/m36},
  note = {Source identifier: m36}
}