@misc{indiciae229fa0a52b52,
  title = {Prospecting for gold in the United States},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1967},
  doi = {10.3133/70039370},
  url = {https://pubs.usgs.gov/publication/70039370},
  note = {Source identifier: 70039370}
}