@misc{indiciaeca41fd4632db,
  title = {Belleville-Breese folio, Illinois},
  author = {Johan August Udden and Eugene Wesley Shaw},
  year = {1915},
  doi = {10.3133/gf195},
  url = {https://pubs.usgs.gov/publication/gf195},
  note = {Source identifier: gf195}
}