@misc{indiciae651a51804fb7,
  title = {Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico},
  author = {Willis T. Lee},
  year = {1916},
  doi = {10.3133/pp95c},
  url = {https://pubs.usgs.gov/publication/pp95C},
  note = {Source identifier: pp95C}
}