@misc{indiciae43621c4be609,
  title = {Basin geology of the Upper Santa Cruz Valley, Pima and Santa Cruz counties, southeastern Arizona},
  author = {M. E. Gettings and Brenda Houser},
  year = {1997},
  doi = {10.3133/ofr97676},
  url = {https://pubs.usgs.gov/publication/ofr97676},
  note = {Source identifier: ofr97676}
}