@misc{indiciae1622d26c416b,
  title = {The Roberts Mountains Formation, a regional stratigraphic study with emphasis on rugose coral distribution, with a section on Conodonts},
  author = {Charles Warren Merriam and Edwin H. McKee and John Warfield Huddle},
  year = {1976},
  doi = {10.3133/pp973},
  url = {https://pubs.usgs.gov/publication/pp973},
  note = {Source identifier: pp973}
}