@misc{indiciaeb96574a70c87,
  title = {Zonation of the late Paleozoic Horseshoe Atoll in Scurry and southern Kent Counties, Texas},
  author = {Philip T. Stafford},
  year = {1955},
  doi = {10.3133/oc53},
  url = {https://pubs.usgs.gov/publication/oc53},
  note = {Source identifier: oc53}
}