@misc{indiciae540be39bc809,
  title = {Provisional diagram showing relations of Permian rock in part of Eddy County, New Mexico},
  author = {E.H. Baltz},
  year = {1960},
  doi = {10.3133/ofr6012},
  url = {https://pubs.usgs.gov/publication/ofr6012},
  note = {Source identifier: ofr6012}
}