@misc{indiciae2420f2ce26b3,
  title = {Geology of the Bowling Green North quadrangle, Kentucky},
  author = {Fred R. Shawe},
  year = {1963},
  doi = {10.3133/gq234},
  url = {https://pubs.usgs.gov/publication/gq234},
  note = {Source identifier: gq234}
}