@misc{indiciae48015d2ecb51,
  title = {Our changing landscape; Indiana Dunes National Lakeshore},
  author = {Catherine L. Hill and B.J. Ryan and B.A. McGregor and Marie Rust},
  year = {1991},
  doi = {10.3133/cir1085},
  url = {https://pubs.usgs.gov/publication/cir1085},
  note = {Source identifier: cir1085}
}