@misc{indiciae0904e8883a5a,
  title = {Stratigraphy, petrology, and depositional environment of the Kenwood Siltstone Member, Borden Formation (Mississippian), Kentucky and Indiana},
  author = {Roy Clark Kepferle},
  year = {1977},
  doi = {10.3133/pp1007},
  url = {https://pubs.usgs.gov/publication/pp1007},
  note = {Source identifier: pp1007}
}