@misc{indiciae244ea2d69de9,
  title = {Results of purchasing coal under Government specifications, with a paper on burning the small sizes of anthracite for heat and power purposes},
  author = {John Shober Burrows and Dwight T. Randall},
  year = {1909},
  doi = {10.3133/b378},
  url = {https://pubs.usgs.gov/publication/b378},
  note = {Source identifier: b378}
}