@misc{indiciaed5b2db06f8ef,
  title = {Digital geologic map of Arizona: A digital database derived from the 1983 printing of the Wilson, Moore, and Cooper 1:500,000-scale map},
  author = {Douglas M. Hirschberg and G. Stephen Pitts},
  year = {2000},
  doi = {10.3133/ofr00409},
  url = {https://pubs.usgs.gov/publication/ofr00409},
  note = {Source identifier: ofr00409}
}