@misc{indiciaeb1736d3a4ddf,
  title = {Aeroradioactivity map of the Manistique Lakes area, Michigan},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/ofr80831},
  url = {https://pubs.usgs.gov/publication/ofr80831},
  note = {Source identifier: ofr80831}
}