@misc{indiciaee4b635dbd9a2,
  title = {Mineral resources of the Uncompahgre primitive area, Colorado},
  author = {Richard Philip Fischer and R. G. Luedke and M.J. Sheridan and R.G. Raabe},
  year = {1968},
  doi = {10.3133/b1261c},
  url = {https://pubs.usgs.gov/publication/b1261C},
  note = {Source identifier: b1261C}
}