@misc{indiciae339f9f166c7d,
  title = {The coal resources of Gunnison Valley, Mesa and Delta Counties, Colorado. The Tijeras coal field, Bernalillo County, New Mexico},
  author = {E. G. Woodruff and W. T. Lee},
  year = {1912},
  doi = {10.3133/b471h},
  url = {https://pubs.usgs.gov/publication/b471H},
  note = {Source identifier: b471H}
}