@misc{indiciae74c9fe2141d1,
  title = {Coal-Quality Information - Key to the Efficient and Environmentally Sound Use of Coal},
  author = {Robert B. Finkleman},
  year = {1997},
  doi = {10.3133/fs17197},
  url = {https://pubs.usgs.gov/publication/fs17197},
  note = {Source identifier: fs17197}
}