@misc{indiciae9488d18b0a09,
  title = {Chart showing correlation of selected restored stratigraphic diagram units of the Eocene Uinta and Green River Formations, east-central Piceance Creek basin, northwestern Colorado},
  author = {Robert Brett O'Sullivan},
  year = {1974},
  doi = {10.3133/oc67},
  url = {https://pubs.usgs.gov/publication/oc67},
  note = {Source identifier: oc67}
}