@misc{indiciaea838e30ccadd,
  title = {Coal resource occurrence maps of the Schneider Ridge Quadrangle, Carbon County, Wyoming},
  author = {Texas Instruments Incorporated},
  year = {1978},
  doi = {10.3133/ofr7859},
  url = {https://pubs.usgs.gov/publication/ofr7859},
  note = {Source identifier: ofr7859}
}