@misc{indiciaea3b197fed6a9,
  title = {Preliminary geologic map of the southeast quarter of the Nipple Butte quadrangle, Kane County, Utah, and Coconino County, Arizona},
  author = {Henry A. Waldrop and Fred Peterson},
  year = {1965},
  doi = {10.3133/ofr65167},
  url = {https://pubs.usgs.gov/publication/ofr65167},
  note = {Source identifier: ofr65167}
}