@misc{indiciae8af62bbace57,
  title = {Porvenir Formation (new name)— And other revisions of nomenclature of Mississippian, Pennsylvanian, and Lower Permian rocks, southeastern Sangre de Cristo Mountains, New Mexico},
  author = {Elmer Harold Baltz and Donald A. Myers},
  year = {1984},
  doi = {10.3133/b1537b},
  url = {https://pubs.usgs.gov/publication/b1537B},
  note = {Source identifier: b1537B}
}