@misc{indiciae3b2d7d8bac60,
  title = {Preliminary report and map on the geologic construction material resources in Riley County, Kansas},
  author = {Frank E. Byrne and Melville R. Mudge and Henry V. Beck and Robert H. Burton},
  year = {1949},
  doi = {10.3133/ofr49128},
  url = {https://pubs.usgs.gov/publication/ofr49128},
  note = {Source identifier: ofr49128}
}