@misc{indiciae92fd1316bce7,
  title = {Iron-ore resources of the United States including Alaska and Puerto Rico, 1955},
  author = {Martha S. Carr and Carl E. Dutton},
  year = {1959},
  doi = {10.3133/b1082c},
  url = {https://pubs.usgs.gov/publication/b1082C},
  note = {Source identifier: b1082C}
}