@misc{indiciaee3026954cbe1,
  title = {Continuing sediment investigation in Indiana by the U.S. Geological Survey; a progress report},
  author = {Lynn E. Johnson},
  year = {1971},
  doi = {10.3133/ofr71160},
  url = {https://pubs.usgs.gov/publication/ofr71160},
  note = {Source identifier: ofr71160}
}