@misc{indiciae949694a47f15,
  title = {Mine sampling and chemical analyses of coals tested at the United States fuel-testing plant, Norfolk, Virginia, in 1907},
  author = {John Shober Burrows},
  year = {1908},
  doi = {10.3133/b362},
  url = {https://pubs.usgs.gov/publication/b362},
  note = {Source identifier: b362}
}