@misc{indiciaef1596d52a22e,
  title = {Correlation of the Middle Jurassic San Rafael Group from Bluff, Utah, to Cortez, Colorado},
  author = {R. B. O'Sullivan},
  year = {1997},
  doi = {10.3133/i2616},
  url = {https://pubs.usgs.gov/publication/i2616},
  note = {Source identifier: i2616}
}