@misc{indiciae3d4af88d2ec7,
  title = {Analytical results and sample locality map of volcanic rocks from the Pedregosa Mountains, Arizona},
  author = {William E. Brooks and Harald Drewes},
  year = {1991},
  doi = {10.3133/ofr91617},
  url = {https://pubs.usgs.gov/publication/ofr91617},
  note = {Source identifier: ofr91617}
}