@misc{indiciae76dfd619d919,
  title = {Water-table map of Racine County, Wisconsin},
  author = {M.G. Sherrill and J.J. Schiller},
  year = {1978},
  doi = {10.3133/wri7941},
  url = {https://pubs.usgs.gov/publication/wri7941},
  note = {Source identifier: wri7941}
}