@misc{indiciae58ce645a218c,
  title = {Geologic map and coal stratigraphic framework of the Cedaredge area, Delta County, Colorado},
  author = {C.R. Dunrud},
  year = {1989},
  doi = {10.3133/coal116},
  url = {https://pubs.usgs.gov/publication/coal116},
  note = {Source identifier: coal116}
}