@misc{indiciae8d34e815f7aa,
  title = {Geologic map of Precambrian rocks of Eau Claire and Green Bay 1 degree by 2 degrees Quadrangles, central Wisconsin},
  author = {P.K. Sims},
  year = {1990},
  doi = {10.3133/i1925},
  url = {https://pubs.usgs.gov/publication/i1925},
  note = {Source identifier: i1925}
}