@misc{indiciae9c8fa9aa48f5,
  title = {Mineral resource potential map of the Lusk Creek Roadless Area, Pope County, Illinois},
  author = {J. S. Klasner and T. M. Kehn and R. M. Thompson},
  year = {1983},
  doi = {10.3133/mf1405c},
  url = {https://pubs.usgs.gov/publication/mf1405C},
  note = {Source identifier: mf1405C}
}