@misc{indiciae421833f80a03,
  title = {Land use and land cover and associated maps for Dubuque, Iowa; Illinois, Wisconsin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1982},
  doi = {10.3133/ofr8224},
  url = {https://pubs.usgs.gov/publication/ofr8224},
  note = {Source identifier: ofr8224}
}