@misc{indiciae9de87c88b563,
  title = {Sulfur compound, organic-carbon, carbonate-carbon, iron, and mineral composition data on samples from the Green River Formation, Wyoming, Colorado and Utah},
  author = {M. L. Tuttle},
  year = {1987},
  doi = {10.3133/ofr8682},
  url = {https://pubs.usgs.gov/publication/ofr8682},
  note = {Source identifier: ofr8682}
}