@misc{indiciaeaa87bca18903,
  title = {Chemical analyses of coal and shale from the Ferron Sandstone Member of the Mancos Shale, Emery coal field, Emery County, Utah},
  author = {Ronald H. Affolter and Joseph R. Hatch and Thomas A. Ryer},
  year = {1979},
  doi = {10.3133/ofr79858},
  url = {https://pubs.usgs.gov/publication/ofr79858},
  note = {Source identifier: ofr79858}
}