@misc{indiciaee93e2873bd58,
  title = {A petrographic study of Gila Polychrome},
  author = {E.B. Danson and R.M. Wallace},
  year = {2017},
  doi = {10.2307/276825},
  url = {https://pubs.usgs.gov/publication/70216186},
  note = {Source identifier: 70216186}
}