@misc{indiciaeddd6db34a6d4,
  title = {A nickel deposit near Gold Hill, Boulder County, Colorado},
  author = {E. N. Goddard and T. S. Lovering},
  year = {1941},
  doi = {10.3133/ofr418},
  url = {https://pubs.usgs.gov/publication/ofr418},
  note = {Source identifier: ofr418}
}