@misc{indiciae9e7add0bf431,
  title = {Preliminary digital classification of limonitic rocks, Frisco 15-minute Quadrangle, Utah},
  author = {M. H. Podwysocki and D. B. Segal},
  year = {1980},
  doi = {10.3133/ofr8019},
  url = {https://pubs.usgs.gov/publication/ofr8019},
  note = {Source identifier: ofr8019}
}