@misc{indiciae60dcf2b22c39,
  title = {Construction-materials in Cloud County, Kansas},
  author = {Laurence Perry Buck and Richard Van Horn and Robert G. Young},
  year = {1951},
  doi = {10.3133/cir88},
  url = {https://pubs.usgs.gov/publication/cir88},
  note = {Source identifier: cir88}
}