@misc{indiciae3567dee5f9c5,
  title = {Bibliography of Precambrian geology of Wisconsin, 1778-1968},
  author = {Carl E. Dutton and Reta E. Bradley},
  year = {1971},
  doi = {10.3133/ofr7192},
  url = {https://pubs.usgs.gov/publication/ofr7192},
  note = {Source identifier: ofr7192}
}