@misc{indiciae8e3da39ea651,
  title = {Cross sections showing correlation of coal beds and coal zones in the Mesaverde Formation in the Carbondale 30' x 60' quadrangle, west-central Colorado},
  author = {Margaret S. Ellis and Val L. Freeman and John R. Donnell},
  year = {1988},
  doi = {10.3133/coal97b},
  url = {https://pubs.usgs.gov/publication/coal97B},
  note = {Source identifier: coal97B}
}