@misc{indiciaef6f3ea4cb2bc,
  title = {Veins of hypogene manganese oxide minerals in the southwestern United States},
  author = {D. F. Hewett},
  year = {1964},
  doi = {10.2113/gsecongeo.59.8.1429},
  url = {https://pubs.usgs.gov/publication/70221905},
  note = {Source identifier: 70221905}
}