@misc{indiciae0d84617766af,
  title = {Isopach maps, perspective projections, and correlation diagrams of the Paleocene Flowers-Goodale coal resource unit in the northern Powder River basin, Birney and Broadus 30' x 60' quadrangles, Montana-Wyoming},
  author = {Laura R. Biewick and Marguerite W. McLellan},
  year = {1990},
  doi = {10.3133/coal136a},
  url = {https://pubs.usgs.gov/publication/coal136A},
  note = {Source identifier: coal136A}
}