@misc{indiciaefa10cef880a8,
  title = {Maps showing locations of known Mississippi Valley-type deposits and occurrences in the Ozark Mountains region relative to late Cambrian shaly lithofacies, and other shales, Missouri, Arkansas, Kansas, and Oklahoma},
  author = {J. R. Palmer and T. S. Hayes},
  year = {1997},
  doi = {10.3133/mf1994f},
  url = {https://pubs.usgs.gov/publication/mf1994F},
  note = {Source identifier: mf1994F}
}