@misc{indiciae01c01a84e655,
  title = {Preliminary digital classification map of limonitic rocks, Observation Knoll 7 1/2' quadrangle, Utah},
  author = {M. H. Podwysocki and Donald B. Segal},
  year = {1980},
  doi = {10.3133/ofr801134},
  url = {https://pubs.usgs.gov/publication/ofr801134},
  note = {Source identifier: ofr801134}
}