@misc{indiciae685558e9d94b,
  title = {Evaluation of the Wilkeson-Carbonado coal field, Pierce County, Washington, for hydraulic coal mining},
  author = {Harold H. Arndt and Bion H. Kent and F. A. Packard and W.L. Haushild},
  year = {1980},
  doi = {10.3133/ofr80802},
  url = {https://pubs.usgs.gov/publication/ofr80802},
  note = {Source identifier: ofr80802}
}