@misc{indiciaecd00333b9c11,
  title = {Reconnaissance geologic map and aeromagnetic map of the Hat Mountain Quadrangle, Maricopa County, Arizona},
  author = {Floyd Gray and R. J. Miller and Lottie Soll},
  year = {1985},
  doi = {10.3133/ofr85138},
  url = {https://pubs.usgs.gov/publication/ofr85138},
  note = {Source identifier: ofr85138}
}