@misc{indiciaebb037a4e266f,
  title = {Stratigraphy and geologic structure in the Piedra River Canyon, Archuleta County, Colorado},
  author = {C.B. Read and G. H. Wood and A. A. Wanek and Pedro Verastegui Mackee},
  year = {1949},
  doi = {10.3133/om96},
  url = {https://pubs.usgs.gov/publication/om96},
  note = {Source identifier: om96}
}