@misc{indiciae5a4c280242d7,
  title = {Preliminary report on Bureau of Mines Yellow Creek core hole No. 1, Rio Blanco County, Colorado},
  author = {R. D. Carroll and D.L. Coffin and J. R. Ege and F.A. Welder},
  year = {1967},
  doi = {10.3133/ofr6738},
  url = {https://pubs.usgs.gov/publication/ofr6738},
  note = {Source identifier: ofr6738}
}