@misc{indiciaef5c7462f78a2,
  title = {An extensive pre-Cretaceous weathering profile in east-central and southwestern Minnesota},
  author = {Dale R. Setterholm and G. B. Morey},
  year = {1995},
  doi = {10.3133/b1989h},
  url = {https://pubs.usgs.gov/publication/b1989H},
  note = {Source identifier: b1989H}
}