@misc{indiciae0ff2256f8b86,
  title = {Construction materials in Graham County, Kansas},
  author = {Frank E. Byrne and Vincent Bruce Coombs and Claude Williard Matthews},
  year = {1951},
  doi = {10.3133/cir51},
  url = {https://pubs.usgs.gov/publication/cir51},
  note = {Source identifier: cir51}
}