@misc{indiciaea684a82ec444,
  title = {Vanadium deposits near Placerville, San Miguel county, Colorado},
  author = {R. P. Fischer and J.C. Haff and J.R. Rominger},
  year = {1947},
  url = {https://pubs.usgs.gov/publication/70047895},
  note = {Source identifier: 70047895}
}