@misc{indiciae1c82094f94c5,
  title = {Land use and land cover and associated maps for Rockford, Illinois, Wisconsin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/ofr80636},
  url = {https://pubs.usgs.gov/publication/ofr80636},
  note = {Source identifier: ofr80636}
}