@misc{indiciaefc2f54f29fa2,
  title = {Industrial mineral resources of the Rolla 1° x 2° quadrangle, Missouri},
  author = {A. W. Rueff},
  year = {1987},
  doi = {10.3133/mf1005c},
  url = {https://pubs.usgs.gov/publication/mf1005C},
  note = {Source identifier: mf1005C}
}