@misc{indiciae3f211006a4da,
  title = {The petrography of some Illinois Pleistocene and recent sands},
  author = {R. E. Hunter},
  year = {1967},
  doi = {10.1016/0037-0738(67)90052-8},
  url = {https://pubs.usgs.gov/publication/70010460},
  note = {Source identifier: 70010460}
}