@misc{indiciaeb784ea4b2637,
  title = {Geology of Precambrian rocks, Idaho Springs district, Colorado},
  author = {R. H. Moench},
  year = {1964},
  doi = {10.3133/b1182a},
  url = {https://pubs.usgs.gov/publication/b1182A},
  note = {Source identifier: b1182A}
}