@misc{indiciae1b3d727a2864,
  title = {Construction materials in Graham County, Kansas},
  author = {F.E. Byrne and V.B. Coombs and C.W. Matthews},
  year = {1948},
  doi = {10.3133/ofr4815c},
  url = {https://pubs.usgs.gov/publication/ofr4815C},
  note = {Source identifier: ofr4815C}
}