@misc{indiciae85c114e07f76,
  title = {Coal development potential map of the Little Thunder Reservoir quadrangle, Campbell County, Wyoming},
  author = {G. C. Martin},
  year = {1977},
  doi = {10.3133/ofr7758},
  url = {https://pubs.usgs.gov/publication/ofr7758},
  note = {Source identifier: ofr7758}
}