@misc{indiciaea29e30123398,
  title = {Structure map with contours on the Van Lear coal, Paintsville quadrangle, Kentucky},
  author = {J.A. Baker and R.E. Houser},
  year = {1951},
  doi = {10.3133/ofr5193},
  url = {https://pubs.usgs.gov/publication/ofr5193},
  note = {Source identifier: ofr5193}
}