@misc{indiciaef5df9efda7ab,
  title = {Geochemical survey of the Lusk Creek Roadless Area, Pope County, Illinois},
  author = {John S. Klasner and Gordon W. Day},
  year = {1984},
  doi = {10.3133/mf1405b},
  url = {https://pubs.usgs.gov/publication/mf1405B},
  note = {Source identifier: mf1405B}
}