@misc{indiciaed91ac705eff7,
  title = {Preliminary reconnaissance bedrock geologic map of part of the Casa Grande Mountains Quadrangle, Pinal County, Arizona},
  author = {Joel R. Bergquist and Philip M. Blacet},
  year = {1978},
  doi = {10.3133/ofr78547},
  url = {https://pubs.usgs.gov/publication/ofr78547},
  note = {Source identifier: ofr78547}
}