@misc{indiciae2e711bfb0360,
  title = {Stratigraphy of the Dripping Spring Quartzite, southeastern Arizona},
  author = {Harry Clifford Granger and R. Bruce Raup},
  year = {1964},
  doi = {10.3133/b1168},
  url = {https://pubs.usgs.gov/publication/b1168},
  note = {Source identifier: b1168}
}