@misc{indiciaebacca443f16d,
  title = {Water-table map of Walworth County, Wisconsin, 1973},
  author = {Ronald G. Borman},
  year = {1976},
  doi = {10.3133/ofr76464},
  url = {https://pubs.usgs.gov/publication/ofr76464},
  note = {Source identifier: ofr76464}
}