@misc{indiciaec98480999588,
  title = {Regional aspects of Pottsville and Allegheny stratigraphy and depositional environments; Ohio and Kentucky},
  author = {C. L. Rice and R.L. Martino and E.R. Slucher},
  year = {1992},
  doi = {10.3133/ofr92558},
  url = {https://pubs.usgs.gov/publication/ofr92558},
  note = {Source identifier: ofr92558}
}