@misc{indiciae33aa7233bb93,
  title = {Petrography and correlation of Precambrian clastic sedimentary rocks associated with the Midcontinent Rift System},
  author = {Pieter Berendsen and Andrzej Barczuk and Warren C. Day and Diane E. Lane},
  year = {1993},
  doi = {10.3133/b1989e},
  url = {https://pubs.usgs.gov/publication/b1989E},
  note = {Source identifier: b1989E}
}