@misc{indiciaed0e4e7788b8d,
  title = {Geologic map of the central part of the Batesville manganese district Independence and Izard Counties, Arkansas},
  author = {J.A. Straczek and D.M. Kinney},
  year = {1950},
  doi = {10.3133/mf1},
  url = {https://pubs.usgs.gov/publication/mf1},
  note = {Source identifier: mf1}
}