@misc{indiciaed80c77cae696,
  title = {The World Coal Quality Inventory (WoCQI)},
  author = {Robert B. Finkelman and Vivian S. Lovern},
  year = {2001},
  doi = {10.3133/fs15500},
  url = {https://pubs.usgs.gov/publication/fs15500},
  note = {Source identifier: fs15500}
}