@misc{indiciaeda6476a1387e,
  title = {Origin and occurrence of uranium in northern Michigan},
  author = {Rollin C. Vickers},
  year = {1956},
  doi = {10.3133/ofr56127},
  url = {https://pubs.usgs.gov/publication/ofr56127},
  note = {Source identifier: ofr56127}
}