@misc{indiciae3dd5c599df37,
  title = {Caldera-related lava flows and intrusions of the south-central San Juan Mountains, Colorado; analytical data},
  author = {Douglas B. Yager and Peter W. Lipman and David A. Sawyer},
  year = {1991},
  doi = {10.3133/ofr91313b},
  url = {https://pubs.usgs.gov/publication/ofr91313B},
  note = {Source identifier: ofr91313B}
}