@misc{indiciaedf06ba563136,
  title = {The Coaldale coal field, Esmeralda County, Nevada},
  author = {J. H. Hance},
  year = {1913},
  doi = {10.3133/b531k},
  url = {https://pubs.usgs.gov/publication/b531K},
  note = {Source identifier: b531K}
}