@misc{indiciaea374454a7889,
  title = {Preliminary geologic map of the Burro Mesa quadrangle, Yavapai County, Arizona},
  author = {A. W. Ward and L. David Nealey},
  year = {1990},
  doi = {10.3133/ofr90212},
  url = {https://pubs.usgs.gov/publication/ofr90212},
  note = {Source identifier: ofr90212}
}