@misc{indiciae9441fd7af7fd,
  title = {Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia},
  author = {Robert T. Ryder and Robert D. Crangle and John E. Repetski and Anita G. Harris},
  year = {2014},
  doi = {10.3133/pp1708e.2.5},
  url = {https://pubs.usgs.gov/publication/pp1708E.2.5},
  note = {Source identifier: pp1708E.2.5}
}