@misc{indiciaedd0c1a0e1258,
  title = {Contributions to economic geology (short papers and preliminary reports), 1919: Part II - Mineral fuels},
  author = {David White and G. H. Ashley},
  year = {1920},
  doi = {10.3133/b711},
  url = {https://pubs.usgs.gov/publication/b711},
  note = {Source identifier: b711}
}