@misc{indiciae3c7ed0ff3d25,
  title = {Classification and distribution of uranium-bearing veins in the United States},
  author = {George Walton Walker and Frank W. Osterwald},
  year = {1956},
  doi = {10.3133/tei486},
  url = {https://pubs.usgs.gov/publication/tei486},
  note = {Source identifier: tei486}
}