@misc{indiciae117bcfcfdb72,
  title = {Inventory of Neoproterozoic and Paleozoic strata in Sonora, Mexico},
  author = {John H. Stewart and Forrest G. Poole},
  year = {2002},
  doi = {10.3133/ofr0297},
  url = {https://pubs.usgs.gov/publication/ofr0297},
  note = {Source identifier: ofr0297}
}