@misc{indiciae9314842ef67a,
  title = {Preliminary reconnaissance bedrock geologic map of the Casa Grande East Quadrangle, Pinal County, Arizona},
  author = {Joel R. Bergquist and Philip Merrill Blacet},
  year = {1979},
  doi = {10.3133/ofr79391},
  url = {https://pubs.usgs.gov/publication/ofr79391},
  note = {Source identifier: ofr79391}
}