@misc{indiciaee5783eec06dd,
  title = {Structure and stratigraphy of the Pennsylvanian rocks exposed in the Seitz quadrangle, Breathitt, Magoffin, Morgan, and Wolfe Counties, Kentucky},
  author = {M. J. Bergin},
  year = {1956},
  doi = {10.3133/om173},
  url = {https://pubs.usgs.gov/publication/om173},
  note = {Source identifier: om173}
}