@misc{indiciae4836691ffbbb,
  title = {Stratigraphy of Upper Pennsylvanian and lower Permian rocks in the Sand Canyon area, Otero County, New Mexico},
  author = {George O. Bachman and Philip T. Hayes},
  year = {1958},
  doi = {10.1130/0016-7606(1958)69[689:soupal]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70212066},
  note = {Source identifier: 70212066}
}