@misc{indiciaeb291574cd004,
  title = {Preliminary geologic map and coal resources of the Oriva Quadrangle, Campbell County, Wyoming},
  author = {B. E. Law},
  year = {1975},
  doi = {10.3133/ofr75195},
  url = {https://pubs.usgs.gov/publication/ofr75195},
  note = {Source identifier: ofr75195}
}