@misc{indiciae141e6e70bc8c,
  title = {Geology and ore deposits of the Monument Valley area, Apache and Navajo counties, Arizona: Part II},
  author = {I. J. Witkind and R.E. Thaden},
  year = {1958},
  doi = {10.3133/tei2042},
  url = {https://pubs.usgs.gov/publication/tei2042},
  note = {Source identifier: tei2042}
}