@misc{indiciae144b335b251f,
  title = {Contributions to economic geology (short papers and preliminary reports), 1921: Part I. - Metals and nonmetals except fuels},
  author = {F. L. Ransome and Ernest Francis Burchard},
  year = {1922},
  doi = {10.3133/b725},
  url = {https://pubs.usgs.gov/publication/b725},
  note = {Source identifier: b725}
}