@misc{indiciae304ebd4a7914,
  title = {Clay mineralogy of Devonian shales in the Appalachian Basin},
  author = {J. W. Hosterman and S.I. Whitlow},
  year = {1983},
  doi = {10.3133/pp1298},
  url = {https://pubs.usgs.gov/publication/pp1298},
  note = {Source identifier: pp1298}
}