@misc{indiciaebfd4605c1569,
  title = {Gold in igneous, sedimentary, and metamorphic rocks},
  author = {Robert Sprague Jones},
  year = {1969},
  doi = {10.3133/cir610},
  url = {https://pubs.usgs.gov/publication/cir610},
  note = {Source identifier: cir610}
}