@misc{indiciaea22d03c0c078,
  title = {Characteristics of strippable Fort Union coals in the northern Rocky Mountains and Great Plains region},
  author = {Romeo M. Flores and L.R. Bader and V.V. Cavaroc and M.S. Ellis and G. Gunther and R. Johnson and C. W. Keighin and D. Likaresh and D. J. Nichols and A. Ochs and S. B. Roberts and G. D. Stricker and K. I. Takahashi and T. Taber and Peter D. Warwick and G. Govern and E.C. Murphy and E. Wilde},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70195525},
  note = {Source identifier: 70195525}
}