@misc{indiciaed0ca552ff07a,
  title = {Mineral resources of the La Garita Wilderness, San Juan Mountains, southwestern Colorado, with a section on geophysical interpretation},
  author = {Thomas August Steven and Carl L. Bieniewski and Gordon P. Eaton},
  year = {1977},
  doi = {10.3133/b1420},
  url = {https://pubs.usgs.gov/publication/b1420},
  note = {Source identifier: b1420}
}