@misc{indiciae0ce95943cf1c,
  title = {Stratigraphic framework of the Absaroka Volcanic Supergroup in the Yellowstone National Park region},
  author = {H.W. Smedes and H.J. Prostka},
  year = {1972},
  doi = {10.3133/pp729c},
  url = {https://pubs.usgs.gov/publication/pp729C},
  note = {Source identifier: pp729C}
}