@misc{indiciaef0c7c8cc1d57,
  title = {The Mount Pleasant coal field, Sanpete County, Utah},
  author = {D.C. Duncan and W. G. Pierce},
  year = {1944},
  doi = {10.3133/ofr4458},
  url = {https://pubs.usgs.gov/publication/ofr4458},
  note = {Source identifier: ofr4458}
}