@misc{indiciae721b9c5efedd,
  title = {Geologic map of the Hasty Quadrangle, Boone and Newton Counties, Arkansas},
  author = {Mark R. Hudson and Kyle E. Murray},
  year = {2004},
  doi = {10.3133/sim2847},
  url = {https://pubs.usgs.gov/publication/sim2847},
  note = {Source identifier: sim2847}
}