@misc{indiciaeee15f142322b,
  title = {Contributions to economic geology (short papers and preliminary reports) : Part II. - Mineral fuels},
  author = {William Taylor Thom},
  year = {1928},
  doi = {10.3133/b796},
  url = {https://pubs.usgs.gov/publication/b796},
  note = {Source identifier: b796}
}