@misc{indiciae7efb5238a942,
  title = {Geologic map of the Belfry Quadrangle, Pike County, Kentucky},
  author = {Charles L. Rice and R.G. Ping and J.L. Barr},
  year = {1976},
  doi = {10.3133/ofr76579},
  url = {https://pubs.usgs.gov/publication/ofr76579},
  note = {Source identifier: ofr76579}
}