@misc{indiciaeeb68ed8081a3,
  title = {Glacial age marsh, Lafayette Park, Washington, D.C.},
  author = {A.S. Knox},
  year = {1969},
  doi = {10.1126/science.165.3895.795},
  url = {https://pubs.usgs.gov/publication/70010241},
  note = {Source identifier: 70010241}
}