@misc{indiciae1ec144abb3cf,
  title = {Land use and land cover, 1973, Paducah, Kentucky; Illinois; Missouri; Indiana},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1979},
  doi = {10.3133/l63},
  url = {https://pubs.usgs.gov/publication/l63},
  note = {Source identifier: l63}
}