@misc{indiciae7db618b0e1e3,
  title = {Chemical analyses of coal from the Tongue River Member, Fort Union Formation, Decker coal deposit, Big Horn County, Montana},
  author = {Ronald H. Affolter and Joseph R. Hatch and Robert E. Matson and L.A. Sauer},
  year = {1979},
  doi = {10.3133/ofr79772},
  url = {https://pubs.usgs.gov/publication/ofr79772},
  note = {Source identifier: ofr79772}
}