@misc{indiciae10c1ba2e0116,
  title = {Preliminary geologic map of the Rifle Quadrangle, Garfield County, Colorado},
  author = {Ralph R. Shroba and M. W. Green and G. M. Fairer},
  year = {1995},
  doi = {10.3133/ofr9552},
  url = {https://pubs.usgs.gov/publication/ofr9552},
  note = {Source identifier: ofr9552}
}