@misc{indiciaef31bda26ed9f,
  title = {Gold-bearing polymetallic veins and replacement deposits — Part II},
  author = {Hal T. Morris and Frederick S. Fisher and Daniel R. Shawe and Tommy B. Thompson},
  year = {1990},
  doi = {10.3133/b1857f},
  url = {https://pubs.usgs.gov/publication/b1857F},
  note = {Source identifier: b1857F}
}