@misc{indiciae7fb4295c85ce,
  title = {Assessment for undiscovered resources of coalbed methane in nine Wyoming BLM wilderness study areas},
  author = {Richard E. Van Loenen and Anthony B. Gibbons},
  year = {1991},
  doi = {10.3133/ofr91590},
  url = {https://pubs.usgs.gov/publication/ofr91590},
  note = {Source identifier: ofr91590}
}