@misc{indiciae5b654d6e3fc1,
  title = {Mineral resource assessment maps of the Harrison 1° x 2° quadrangle, Missouri and Arkansas},
  author = {W. P. Pratt and T. S. Hayes and R. L. Erickson and E. B. Kisvarsanyi and M.C. McFarland and A. W. Rueff and W. V. Bush and G. W. Colton and J.D. McFarland},
  year = {1993},
  doi = {10.3133/mf1994d},
  url = {https://pubs.usgs.gov/publication/mf1994D},
  note = {Source identifier: mf1994D}
}